diff --git a/source/libs/wal/src/walMgmt.c b/source/libs/wal/src/walMgmt.c
index 81d31f9ecd..2d9ca4cce3 100644
--- a/source/libs/wal/src/walMgmt.c
+++ b/source/libs/wal/src/walMgmt.c
@@ -189,6 +189,7 @@ SWal *walOpen(const char *path, SWalCfg *pCfg) {
 
 _err:
   taosArrayDestroy(pWal->fileInfoSet);
+  taosArrayDestroy(pWal->toDeleteFiles);
   taosHashCleanup(pWal->pRefHash);
   TAOS_UNUSED(taosThreadRwlockDestroy(&pWal->mutex));
   taosMemoryFreeClear(pWal);