diff --git a/src/mnode/src/mgmtMnode.c b/src/mnode/src/mgmtMnode.c
index 491fcb53021a8f35a01c90013fc5abf0eeb87c4c..e469dc4f6f7ccbcf4a4ba3f2a878b1e0ffdcff1f 100644
--- a/src/mnode/src/mgmtMnode.c
+++ b/src/mnode/src/mgmtMnode.c
@@ -87,6 +87,14 @@ static int32_t mgmtMnodeActionDecode(SSdbOperDesc *pOper) {
 }
 
 static int32_t mgmtMnodeActionRestored() {
+  if (mgmtGetMnodesNum() == 1) {
+    SMnodeObj *pMnode = NULL;
+    mgmtGetNextMnode(NULL, &pMnode);
+    if (pMnode != NULL) {
+      pMnode->role = TAOS_SYNC_ROLE_MASTER;
+      mgmtReleaseMnode(pMnode);
+    }
+  }
   return TSDB_CODE_SUCCESS;
 }