diff --git a/src/dnode/src/dnodeMgmt.c b/src/dnode/src/dnodeMgmt.c
index 3706f3b6b3..9cf024ba83 100644
--- a/src/dnode/src/dnodeMgmt.c
+++ b/src/dnode/src/dnodeMgmt.c
@@ -328,6 +328,7 @@ static int32_t dnodeOpenVnodes() {
   }
 
   free(vnodeList);
+  free(threads);
   dInfo("there are total vnodes:%d, openned:%d failed:%d", numOfVnodes, openVnodes, failedVnodes);
 
   return TSDB_CODE_SUCCESS;