diff --git a/tests/unit/test_cassettes.py b/tests/unit/test_cassettes.py
index <HASH>..<HASH> 100644
--- a/tests/unit/test_cassettes.py
+++ b/tests/unit/test_cassettes.py
@@ -110,7 +110,7 @@ def test_arg_getter_functionality():
     def function():
         pass
 
-    with mock.patch.object(Cassette, 'load') as cassette_load:
+    with mock.patch.object(Cassette, 'load', return_value=mock.MagicMock(inject=False)) as cassette_load:
         function()
         cassette_load.assert_called_once_with(arg_getter.return_value[0],
                                               **arg_getter.return_value[1])
diff --git a/tests/unit/test_vcr.py b/tests/unit/test_vcr.py
index <HASH>..<HASH> 100644
--- a/tests/unit/test_vcr.py
+++ b/tests/unit/test_vcr.py
@@ -9,7 +9,7 @@ from vcr.stubs import VCRHTTPSConnection
 def test_vcr_use_cassette():
     record_mode = mock.Mock()
     test_vcr = VCR(record_mode=record_mode)
-    with mock.patch('vcr.cassette.Cassette.load') as mock_cassette_load:
+    with mock.patch('vcr.cassette.Cassette.load', return_value=mock.MagicMock(inject=False)) as mock_cassette_load:
         @test_vcr.use_cassette('test')
         def function():
             pass
inject_cassette fallout.