diff --git a/queue_job/controllers/main.py b/queue_job/controllers/main.py
index e47461eab0..6ce3a7c071 100644
--- a/queue_job/controllers/main.py
+++ b/queue_job/controllers/main.py
@@ -148,6 +148,7 @@ def retry_postpone(job, message, seconds=None):
             # traceback in the logs we should have the traceback when all
             # retries are exhausted
             env.cr.rollback()
+            return ""
 
         except (FailedJobError, Exception) as orig_exception:
             buff = StringIO()