diff --git a/main.py b/main.py
index d7cc5b7..9f48c05 100755
--- a/main.py
+++ b/main.py
@@ -50,7 +50,7 @@ class CreateVM(Resource):
                 "image_uuid": data["image_uuid"],
                 "log": [],
                 "storage_attachment": [],
-                "vnc_socket": None
+                "vnc_socket": ""
             }
             client.put(vm_key, vm_entry, value_in_json=True)