diff --git a/awx/main/middleware.py b/awx/main/middleware.py
index 15e8dc58eb..900c800d59 100644
--- a/awx/main/middleware.py
+++ b/awx/main/middleware.py
@@ -111,7 +111,7 @@ def _customize_graph():
 class URLModificationMiddleware(object):
 
     def __init__(self):
-        models = apps.get_app_config('main').get_models()
+        models = [m for m in apps.get_app_config('main').get_models() if hasattr(m, 'get_absolute_url')]
         generate_graph(models)
         _customize_graph()
         register(