diff --git a/pyinfra_cli/util.py b/pyinfra_cli/util.py
index <HASH>..<HASH> 100644
--- a/pyinfra_cli/util.py
+++ b/pyinfra_cli/util.py
@@ -30,6 +30,7 @@ except ImportError:
 import click
 
 from pyinfra import logger, pseudo_host
+from pyinfra.api.host import Host
 from pyinfra.api.util import exec_file
 from pyinfra.hook import HOOKS
 
@@ -130,6 +131,9 @@ def json_encode(obj):
     elif isinstance(obj, datetime):
         return obj.isoformat()
 
+    elif isinstance(obj, Host):
+        return obj.name
+
     elif isinstance(obj, io_bases):
         if hasattr(obj, 'name'):
             return 'File: {0}'.format(obj.name)
Properly serialise `Host` objects.