diff --git a/src/tsdb/src/tsdbCommit.c b/src/tsdb/src/tsdbCommit.c
index 8327f259f71e62c188183d2413d75a18451e2a72..d432c951dd1d91e12c7338aeda9b0619bd949b6d 100644
--- a/src/tsdb/src/tsdbCommit.c
+++ b/src/tsdb/src/tsdbCommit.c
@@ -128,7 +128,7 @@ _err:
 
 int tsdbApplyRtnOnFSet(STsdbRepo *pRepo, SDFileSet *pSet, SRtn *pRtn) {
   SDiskID   did;
-  SDFileSet nSet;
+  SDFileSet nSet = {0};
   STsdbFS * pfs = REPO_FS(pRepo);
   int       level;