diff --git a/source/os/src/osFile.c b/source/os/src/osFile.c
index aab547223f8d5caf11ec824eeeece978f934ae0d..9833e3ba4577517286618041fd51e8a83edd76d2 100644
--- a/source/os/src/osFile.c
+++ b/source/os/src/osFile.c
@@ -538,10 +538,11 @@ int32_t taosFStatFile(TdFilePtr pFile, int64_t *size, int32_t *mtime) {
     return -1;
   }
 
-  struct stat fileStat;
 #ifdef WINDOWS
+  struct __stat64 fileStat;
   int32_t code = _fstat(pFile->fd, &fileStat);
 #else
+  struct stat fileStat;
   int32_t code = fstat(pFile->fd, &fileStat);
 #endif
   if (code < 0) {
diff --git a/source/util/src/tlog.c b/source/util/src/tlog.c
index 2a18f420cd0a74f6205f522784047c67c547a4b0..d415379f9217368db50e8e6ffadc64ac67fdf4b0 100644
--- a/source/util/src/tlog.c
+++ b/source/util/src/tlog.c
@@ -347,7 +347,6 @@ static int32_t taosOpenLogFile(char *fn, int32_t maxLines, int32_t maxFileNum) {
 
   char    name[LOG_FILE_NAME_LEN + 50] = "\0";
   int32_t logstat0_mtime, logstat1_mtime;
-  int32_t size;
 
   tsLogObj.maxLines = maxLines;
   tsLogObj.fileNum = maxFileNum;
@@ -395,8 +394,7 @@ static int32_t taosOpenLogFile(char *fn, int32_t maxLines, int32_t maxFileNum) {
     printf("\nfailed to fstat log file:%s, reason:%s\n", fileName, strerror(errno));
     return -1;
   }
-  size = (int32_t)filesize;
-  tsLogObj.lines = size / 60;
+  tsLogObj.lines = (int32_t)(filesize / 60);
 
   taosLSeekFile(tsLogObj.logHandle->pFile, 0, SEEK_END);