diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 9ae3487444..6f1ce6ad0b 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -662,6 +662,7 @@ static SCliConn* getConnFromPool(SCliThrd* pThrd, char* key, bool* exceed) {
   if (QUEUE_IS_EMPTY(&plist->conns)) {
     if (plist->list->numOfConn >= pTranInst->connLimitNum) {
       *exceed = true;
+      return NULL;;
     }
     plist->list->numOfConn++;
     return NULL;