diff --git a/source/libs/sync/src/syncRequestVote.c b/source/libs/sync/src/syncRequestVote.c
index bd0e684b86..4d1e259575 100644
--- a/source/libs/sync/src/syncRequestVote.c
+++ b/source/libs/sync/src/syncRequestVote.c
@@ -63,6 +63,7 @@ int32_t syncNodeOnRequestVoteCb(SSyncNode* ths, SyncRequestVote* pMsg) {
     // vote again, no harm
     raftStoreVote(ths->pRaftStore, &(pMsg->srcId));
 
+    // forbid elect for this round
     syncNodeResetElectTimer(ths);
   }