diff --git a/awx/main/models/projects.py b/awx/main/models/projects.py
index b713c3c557..117d7d1dfb 100644
--- a/awx/main/models/projects.py
+++ b/awx/main/models/projects.py
@@ -302,7 +302,7 @@ class Project(UnifiedJobTemplate, ProjectOptions):
     def cache_timeout_blocked(self):
         if not self.last_job_run:
             return False
-        if (self.last_job_run + datetime.timedelta(seconds=self.update_cache_timeout)) > now():
+        if (self.last_job_run + datetime.timedelta(seconds=self.scm_update_cache_timeout)) > now():
             return True
         return False