diff --git a/awx/main/credential_plugins/aim.py b/awx/main/credential_plugins/aim.py
index 96487dcced..4cf65a36a9 100644
--- a/awx/main/credential_plugins/aim.py
+++ b/awx/main/credential_plugins/aim.py
@@ -70,7 +70,7 @@ def aim_backend(**kwargs):
     client_cert = kwargs.get('client_cert', None)
     client_key = kwargs.get('client_key', None)
     verify = kwargs['verify']
-    webservice_id = kwargs['webservice_id']
+    webservice_id = kwargs['webservice_id', '']
     app_id = kwargs['app_id']
     object_query = kwargs['object_query']
     object_query_format = kwargs['object_query_format']