diff --git a/awx_collection/plugins/modules/project_update.py b/awx_collection/plugins/modules/project_update.py
index 6ccdca1fdb..38b55c8e3c 100644
--- a/awx_collection/plugins/modules/project_update.py
+++ b/awx_collection/plugins/modules/project_update.py
@@ -114,7 +114,12 @@ def main():
     # Update the project
     result = module.post_endpoint(project['related']['update'])
 
-    if result['status_code'] != 202:
+    if result['status_code'] == 405:
+        module.fail_json(
+            msg="Unable to trigger a project update because the project scm_type ({0}) does not support it.".format(project['scm_type']),
+            response=result
+        )
+    elif result['status_code'] != 202:
         module.fail_json(msg="Failed to update project, see response for details", response=result)
 
     module.json_output['changed'] = True