diff --git a/pyhocon/config_parser.py b/pyhocon/config_parser.py
index 9e20236..27366a5 100644
--- a/pyhocon/config_parser.py
+++ b/pyhocon/config_parser.py
@@ -236,7 +236,7 @@ class ConfigParser(object):
 
         value_expr = number_expr | true_expr | false_expr | null_expr | string_expr
 
-        include_expr = (Keyword("include", caseless=True).suppress() - (
+        include_expr = (Keyword("include", caseless=True).suppress() + (
             quoted_string | (
                 (Keyword('url') | Keyword('file')) - Literal('(').suppress() - quoted_string - Literal(')').suppress()))) \
             .setParseAction(include_config)

Syntax error while parsing variables of form include-blah-blah
Trying to parse the following config:
```
{
    include-other-stuff = true
}
```

with `conf = pyhocon.ConfigFactory.parse_file('/tmp/foo.conf')` results in the following stacktrace:

```
  File "/home/blah/blahblah.py", line 53, in <module>
    conf = pyhocon.ConfigFactory.parse_file('/tmp/foo.conf')
  File "/opt/anaconda3/lib/python3.4/site-packages/pyhocon/config_parser.py", line 48, in parse_file
    return ConfigFactory.parse_string(content, os.path.dirname(filename), resolve)
  File "/opt/anaconda3/lib/python3.4/site-packages/pyhocon/config_parser.py", line 87, in parse_string
    return ConfigParser().parse(content, basedir, resolve)
  File "/opt/anaconda3/lib/python3.4/site-packages/pyhocon/config_parser.py", line 269, in parse
    config = config_expr.parseString(content, parseAll=True)[0]
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 1125, in parseString
    raise exc
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 1115, in parseString
    loc, tokens = self._parse( instring, 0 )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2378, in parseImpl
    loc, exprtokens = e._parse( instring, loc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2483, in parseImpl
    ret = e._parse( instring, loc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2624, in parseImpl
    return self.expr._parse( instring, loc, doActions, callPreParse=False )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2361, in parseImpl
    loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2369, in parseImpl
    loc, exprtokens = e._parse( instring, loc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2624, in parseImpl
    return self.expr._parse( instring, loc, doActions, callPreParse=False )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2739, in parseImpl
    loc, tmptokens = self.expr._parse( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2483, in parseImpl
    ret = e._parse( instring, loc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 989, in _parseNoCache
    loc,tokens = self.parseImpl( instring, preloc, doActions )
  File "/opt/anaconda3/lib/python3.4/site-packages/pyparsing.py", line 2374, in parseImpl
    raise ParseSyntaxException(pe)
pyparsing.ParseSyntaxException: Expected Re:('".*?"[ \t]*') (at char 13), (line:2, col:12)
```
diff --git a/tests/test_config_parser.py b/tests/test_config_parser.py
index a0927f1..72d0114 100644
--- a/tests/test_config_parser.py
+++ b/tests/test_config_parser.py
@@ -1153,6 +1153,16 @@ class TestConfigParser(object):
             assert config['x'] == 42
             assert config['y'] == 42
 
+    def test_var_with_include_keyword(self):
+        config = ConfigFactory.parse_string(
+            """
+            include-database=true
+            """)
+
+        assert config == {
+            'include-database': True
+        }
+
     def test_substitution_override(self):
         config = ConfigFactory.parse_string(
             """

pip install -e .[dev]
parse_log_pytest
pytest
pytest mock
apt-get update apt-get install -y gcc
3.7
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
attrs @ file:///croot/attrs_1668696182826/work
certifi @ file:///croot/certifi_1671487769961/work/certifi
flit_core @ file:///opt/conda/conda-bld/flit-core_1644941570762/work/source/flit_core
importlib-metadata @ file:///tmp/build/80754af9/importlib-metadata_1648562407465/work
iniconfig @ file:///home/linux1/recipes/ci/iniconfig_1610983019677/work
mock==5.2.0
packaging @ file:///croot/packaging_1671697413597/work
pluggy @ file:///tmp/build/80754af9/pluggy_1648042572264/work
py @ file:///opt/conda/conda-bld/py_1644396412707/work
-e git+https://github.com/chimpler/pyhocon.git@abac1214ebcda0634960c29a16fba9a533266043#egg=pyhocon
pyparsing==3.1.4
pytest==7.1.2
tomli @ file:///opt/conda/conda-bld/tomli_1657175507142/work
typing_extensions @ file:///croot/typing_extensions_1669924550328/work
zipp @ file:///croot/zipp_1672387121353/work

name: pyhocon
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - attrs=22.1.0=py37h06a4308_0
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2022.12.7=py37h06a4308_0
  - flit-core=3.6.0=pyhd3eb1b0_0
  - importlib-metadata=4.11.3=py37h06a4308_0
  - importlib_metadata=4.11.3=hd3eb1b0_0
  - iniconfig=1.1.1=pyhd3eb1b0_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.4.4=h6a678d5_1
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - packaging=22.0=py37h06a4308_0
  - pip=22.3.1=py37h06a4308_0
  - pluggy=1.0.0=py37h06a4308_1
  - py=1.11.0=pyhd3eb1b0_0
  - pytest=7.1.2=py37h06a4308_0
  - python=3.7.16=h7a1cb2a_0
  - readline=8.2=h5eee18b_0
  - setuptools=65.6.3=py37h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - tomli=2.0.1=py37h06a4308_0
  - typing_extensions=4.4.0=py37h06a4308_0
  - wheel=0.38.4=py37h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zipp=3.11.0=py37h06a4308_0
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - mock==5.2.0
      - pyparsing==3.1.4
prefix: /opt/conda/envs/pyhocon

tests/test_config_parser.py::TestConfigParser::test_var_with_include_keyword
tests/test_config_parser.py::TestConfigParser::test_parse_simple_value tests/test_config_parser.py::TestConfigParser::test_parse_with_enclosing_brace tests/test_config_parser.py::TestConfigParser::test_parse_with_enclosing_square_bracket tests/test_config_parser.py::TestConfigParser::test_quoted_key_with_dots tests/test_config_parser.py::TestConfigParser::test_dotted_notation_merge tests/test_config_parser.py::TestConfigParser::test_comma_to_separate_expr tests/test_config_parser.py::TestConfigParser::test_dict_merge tests/test_config_parser.py::TestConfigParser::test_parse_with_comments tests/test_config_parser.py::TestConfigParser::test_missing_config tests/test_config_parser.py::TestConfigParser::test_parse_null tests/test_config_parser.py::TestConfigParser::test_parse_override tests/test_config_parser.py::TestConfigParser::test_concat_dict tests/test_config_parser.py::TestConfigParser::test_concat_string tests/test_config_parser.py::TestConfigParser::test_concat_list tests/test_config_parser.py::TestConfigParser::test_bad_concat tests/test_config_parser.py::TestConfigParser::test_string_substitutions tests/test_config_parser.py::TestConfigParser::test_string_substitutions_with_no_space tests/test_config_parser.py::TestConfigParser::test_int_substitutions tests/test_config_parser.py::TestConfigParser::test_cascade_string_substitutions tests/test_config_parser.py::TestConfigParser::test_multiple_substitutions tests/test_config_parser.py::TestConfigParser::test_dict_substitutions tests/test_config_parser.py::TestConfigParser::test_dos_chars_with_unquoted_string_noeol tests/test_config_parser.py::TestConfigParser::test_dos_chars_with_quoted_string_noeol tests/test_config_parser.py::TestConfigParser::test_dos_chars_with_triple_quoted_string_noeol tests/test_config_parser.py::TestConfigParser::test_dos_chars_with_int_noeol tests/test_config_parser.py::TestConfigParser::test_dos_chars_with_float_noeol tests/test_config_parser.py::TestConfigParser::test_list_substitutions tests/test_config_parser.py::TestConfigParser::test_list_element_substitution tests/test_config_parser.py::TestConfigParser::test_substitution_list_with_append tests/test_config_parser.py::TestConfigParser::test_substitution_list_with_append_substitution tests/test_config_parser.py::TestConfigParser::test_non_existent_substitution tests/test_config_parser.py::TestConfigParser::test_non_compatible_substitution tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_array tests/test_config_parser.py::TestConfigParser::test_self_append_array tests/test_config_parser.py::TestConfigParser::test_self_append_string tests/test_config_parser.py::TestConfigParser::test_self_append_non_existent_string tests/test_config_parser.py::TestConfigParser::test_self_append_nonexistent_array tests/test_config_parser.py::TestConfigParser::test_self_append_object tests/test_config_parser.py::TestConfigParser::test_self_append_nonexistent_object tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_array_to_dict tests/test_config_parser.py::TestConfigParser::test_self_ref_substitiotion_dict_in_array tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_path tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_path_hide tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_recurse tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_recurse2 tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_merge tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_otherfield tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_otherfield_merged_in tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_otherfield_merged_in_mutual tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_string_opt_concat tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_dict_recurse_part tests/test_config_parser.py::TestConfigParser::test_self_ref_substitution_object tests/test_config_parser.py::TestConfigParser::test_concat_multi_line_string tests/test_config_parser.py::TestConfigParser::test_concat_multi_line_list tests/test_config_parser.py::TestConfigParser::test_concat_multi_line_dict tests/test_config_parser.py::TestConfigParser::test_parse_URL_from_samples tests/test_config_parser.py::TestConfigParser::test_parse_URL_from_invalid tests/test_config_parser.py::TestConfigParser::test_include_dict_from_samples tests/test_config_parser.py::TestConfigParser::test_list_of_dicts tests/test_config_parser.py::TestConfigParser::test_list_of_lists tests/test_config_parser.py::TestConfigParser::test_list_of_dicts_with_merge tests/test_config_parser.py::TestConfigParser::test_list_of_lists_with_merge tests/test_config_parser.py::TestConfigParser::test_invalid_assignment tests/test_config_parser.py::TestConfigParser::test_invalid_dict tests/test_config_parser.py::TestConfigParser::test_include_list tests/test_config_parser.py::TestConfigParser::test_include_dict tests/test_config_parser.py::TestConfigParser::test_include_substitution tests/test_config_parser.py::TestConfigParser::test_substitution_override tests/test_config_parser.py::TestConfigParser::test_substitution_flat_override tests/test_config_parser.py::TestConfigParser::test_substitution_nested_override tests/test_config_parser.py::TestConfigParser::test_optional_substitution tests/test_config_parser.py::TestConfigParser::test_cascade_optional_substitution tests/test_config_parser.py::TestConfigParser::test_substitution_cycle tests/test_config_parser.py::TestConfigParser::test_assign_number_with_eol tests/test_config_parser.py::TestConfigParser::test_assign_strings_with_eol tests/test_config_parser.py::TestConfigParser::test_assign_list_numbers_with_eol tests/test_config_parser.py::TestConfigParser::test_assign_list_strings_with_eol tests/test_config_parser.py::TestConfigParser::test_assign_dict_strings_with_equal_sign_with_eol tests/test_config_parser.py::TestConfigParser::test_assign_dict_strings_no_equal_sign_with_eol tests/test_config_parser.py::TestConfigParser::test_substitutions_overwrite tests/test_config_parser.py::TestConfigParser::test_fallback_substitutions_overwrite tests/test_config_parser.py::TestConfigParser::test_fallback_substitutions_overwrite_file tests/test_config_parser.py::TestConfigParser::test_fallback_self_ref_substitutions_append tests/test_config_parser.py::TestConfigParser::test_fallback_self_ref_substitutions_append_plus_equals tests/test_config_parser.py::TestConfigParser::test_self_merge_ref_substitutions_object tests/test_config_parser.py::TestConfigParser::test_self_merge_ref_substitutions_object2 tests/test_config_parser.py::TestConfigParser::test_self_merge_ref_substitutions_object3 tests/test_config_parser.py::TestConfigParser::test_fallback_self_ref_substitutions_merge tests/test_config_parser.py::TestConfigParser::test_fallback_self_ref_substitutions_concat_string tests/test_config_parser.py::TestConfigParser::test_object_field_substitution tests/test_config_parser.py::TestConfigParser::test_one_line_quote_escape tests/test_config_parser.py::TestConfigParser::test_multi_line_escape tests/test_config_parser.py::TestConfigParser::test_multiline_with_backslash tests/test_config_parser.py::TestConfigParser::test_from_dict_with_dict tests/test_config_parser.py::TestConfigParser::test_from_dict_with_ordered_dict tests/test_config_parser.py::TestConfigParser::test_from_dict_with_nested_dict tests/test_config_parser.py::TestConfigParser::test_object_concat tests/test_config_parser.py::TestConfigParser::test_issue_75 tests/test_config_parser.py::TestConfigParser::test_plain_ordered_dict tests/test_config_parser.py::TestConfigParser::test_quoted_strings_with_ws tests/test_config_parser.py::TestConfigParser::test_unquoted_strings_with_ws tests/test_config_parser.py::TestConfigParser::test_quoted_unquoted_strings_with_ws tests/test_config_parser.py::TestConfigParser::test_quoted_unquoted_strings_with_ws_substitutions tests/test_config_parser.py::TestConfigParser::test_assign_next_line tests/test_config_parser.py::TestConfigParser::test_string_from_environment tests/test_config_parser.py::TestConfigParser::test_bool_from_environment tests/test_config_parser.py::TestConfigParser::test_int_from_environment
pyhocon/config_parser.py
pyhocon/config_parser.py