diff --git a/SAS/DataManagement/Cleanup/AutoCleanupService/autocleanupservice b/SAS/DataManagement/Cleanup/AutoCleanupService/autocleanupservice
index b4e51327f044d96c5a5af614ee183cf715a4fddf..c3fa2ed95a3379e64aea26ff3d1d2e74adfaadd7 100755
--- a/SAS/DataManagement/Cleanup/AutoCleanupService/autocleanupservice
+++ b/SAS/DataManagement/Cleanup/AutoCleanupService/autocleanupservice
@@ -84,7 +84,7 @@ class AutoCleanupIngestEventMessageHandler(IngestEventMessageHandler):
             def cleanupUpstreamDataIfPossible(node_mom2id):
                 task_details = self.__momrpc.getObjectDetails(node_mom2id).get(node_mom2id)
                 if not task_details or task_details.get('object_status') != 'finished':
-                    logger.info('task with mom_id is not finished. skipping further cleanup.', node_mom2id)
+                    logger.info('task with mom_id %s is not finished. skipping further cleanup.', node_mom2id)
                     return
 
                 node = graph.get(node_mom2id)