diff --git a/source/libs/sync/src/syncRespMgr.c b/source/libs/sync/src/syncRespMgr.c
index 47c73745fd..642e572434 100644
--- a/source/libs/sync/src/syncRespMgr.c
+++ b/source/libs/sync/src/syncRespMgr.c
@@ -76,8 +76,8 @@ int32_t syncRespMgrGetAndDel(SSyncRespMgr *pObj, uint64_t index, SRespStub *pStu
   void *pTmp = taosHashGet(pObj->pRespHash, &index, sizeof(index));
   if (pTmp != NULL) {
     memcpy(pStub, pTmp, sizeof(SRespStub));
-    taosThreadMutexUnlock(&(pObj->mutex));
     taosHashRemove(pObj->pRespHash, &index, sizeof(index));
+    taosThreadMutexUnlock(&(pObj->mutex));
     return 1;  // get one object
   }
   taosThreadMutexUnlock(&(pObj->mutex));
@@ -90,4 +90,4 @@ void syncRespClean(SSyncRespMgr *pObj) {
   taosThreadMutexUnlock(&(pObj->mutex));
 }
 
-void syncRespCleanByTTL(SSyncRespMgr *pObj, int64_t ttl) {}
\ No newline at end of file
+void syncRespCleanByTTL(SSyncRespMgr *pObj, int64_t ttl) {}