diff --git a/src/tsdb/src/tsdbSync.c b/src/tsdb/src/tsdbSync.c
index 0883cd2fed..6f5057164f 100644
--- a/src/tsdb/src/tsdbSync.c
+++ b/src/tsdb/src/tsdbSync.c
@@ -80,7 +80,7 @@ _err:
 
 int32_t tsdbSyncRecv(void *tsdb, int32_t socketFd) {
   STsdbRepo *pRepo = (STsdbRepo *)tsdb;
-  SSyncH synch;
+  SSyncH synch = {0};
 
   tsdbInitSyncH(&synch, pRepo, socketFd);
   tsdbStartFSTxn(pRepo, 0, 0);