diff --git a/app/namespaces/cqi_over_sio/__init__.py b/app/namespaces/cqi_over_sio/__init__.py
index b219aeef..fbf5a0f8 100644
--- a/app/namespaces/cqi_over_sio/__init__.py
+++ b/app/namespaces/cqi_over_sio/__init__.py
@@ -162,7 +162,7 @@ class CQiOverSocketIONamespace(Namespace):
 
         if fn_name in CQI_API_FUNCTION_NAMES:
             fn = getattr(cqi_client.api, fn_name)
-        elif fn_name in cqi_extension_functions.CQI_EXTENSION_FUNCTION_NAMES:
+        elif fn_name in CQI_EXTENSION_FUNCTION_NAMES:
             fn = getattr(cqi_extension_functions, fn_name)
         else:
             return {'code': 400, 'msg': 'Bad Request'}