diff --git a/source/dnode/mgmt/node_mgmt/src/dmEnv.c b/source/dnode/mgmt/node_mgmt/src/dmEnv.c
index 4be1af30b5..4739409d2c 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmEnv.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmEnv.c
@@ -310,7 +310,7 @@ static int32_t dmProcessAlterNodeTypeReq(EDndNodeType ntype, SRpcMsg *pMsg) {
 
   pWrapper = &pDnode->wrappers[ntype];
   if (taosMkDir(pWrapper->path) != 0) {
-    dmReleaseWrapper(pWrapper);
+    taosThreadMutexUnlock(&pDnode->mutex);
     terrno = TAOS_SYSTEM_ERROR(errno);
     dError("failed to create dir:%s since %s", pWrapper->path, terrstr());
     return -1;