diff --git a/source/libs/sync/src/syncRespMgr.c b/source/libs/sync/src/syncRespMgr.c
index 59825ef91e..cd2a8efeea 100644
--- a/source/libs/sync/src/syncRespMgr.c
+++ b/source/libs/sync/src/syncRespMgr.c
@@ -28,8 +28,7 @@ int32_t syncRespMgrCreate(void *data, int64_t ttl, SSyncRespMgr **ppObj) {
     TAOS_RETURN(terrno);
   }
 
-  pObj->pRespHash =
-      taosHashInit(sizeof(uint64_t), taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK);
+  pObj->pRespHash = taosHashInit(8192, taosGetDefaultHashFunction(TSDB_DATA_TYPE_UBIGINT), true, HASH_NO_LOCK);
   if (pObj->pRespHash == NULL) {
     taosMemoryFree(pObj);
     TAOS_RETURN(terrno);