diff --git a/src/tsdb/src/tsdbCommit.c b/src/tsdb/src/tsdbCommit.c
index db675d0427901f55e676a17592f0c131820e8718..0b1ca0641b0e0826bd971bfe4d129421c3a54b54 100644
--- a/src/tsdb/src/tsdbCommit.c
+++ b/src/tsdb/src/tsdbCommit.c
@@ -123,7 +123,7 @@ _err:
 
 int tsdbApplyRtnOnFSet(STsdbRepo *pRepo, SDFileSet *pSet, SRtn *pRtn) {
   SDiskID   did;
-  SDFileSet nSet;
+  SDFileSet nSet = {0};
   STsdbFS * pfs = REPO_FS(pRepo);
   int       level;