diff --git a/src/tsdb/src/tsdbFile.c b/src/tsdb/src/tsdbFile.c
index 67696e48a572c29d0d6a33d4359236162f50cd28..77d172893e5ee176e636c8f0e5f3ed15ed86be2e 100644
--- a/src/tsdb/src/tsdbFile.c
+++ b/src/tsdb/src/tsdbFile.c
@@ -79,7 +79,7 @@ void *tsdbDecodeSMFileEx(void *buf, SMFile *pMFile) {
   char *aname;
   buf = tsdbDecodeMFInfo(buf, &(pMFile->info));
   buf = taosDecodeString(buf, &aname);
-  strncpy(TSDB_FILE_FULL_NAME(pMFile), aname, TSDB_FILENAME_LEN);
+  tstrncpy(TSDB_FILE_FULL_NAME(pMFile), aname, TSDB_FILENAME_LEN);
   TSDB_FILE_SET_CLOSED(pMFile);
 
   tfree(aname);
@@ -345,7 +345,7 @@ static void *tsdbDecodeSDFileEx(void *buf, SDFile *pDFile) {
   // The sync module would send DFileSet with latest verion.
   buf = tsdbDecodeDFInfo(buf, &(pDFile->info), TSDB_LATEST_SFS_VER);
   buf = taosDecodeString(buf, &aname);
-  strncpy(TSDB_FILE_FULL_NAME(pDFile), aname, TSDB_FILENAME_LEN);
+  tstrncpy(TSDB_FILE_FULL_NAME(pDFile), aname, TSDB_FILENAME_LEN);
   TSDB_FILE_SET_CLOSED(pDFile);
   tfree(aname);
 
@@ -716,4 +716,4 @@ static void tsdbGetFilename(int vid, int fid, uint32_t ver, TSDB_FILE_T ftype, c
       snprintf(fname, TSDB_FILENAME_LEN, "vnode/vnode%d/tsdb/%s-ver%" PRIu32, vid, TSDB_FNAME_SUFFIX[ftype], ver);
     }
   }
-}
\ No newline at end of file
+}