diff --git a/source/util/src/tanalytics.c b/source/util/src/tanalytics.c
index 68bbbb7e99..3812295381 100644
--- a/source/util/src/tanalytics.c
+++ b/source/util/src/tanalytics.c
@@ -478,11 +478,13 @@ static int32_t taosAnalJsonBufWriteStrUseCol(SAnalyticBuf *pBuf, const char *buf
   }
 
   if (pBuf->bufType == ANALYTICS_BUF_TYPE_JSON) {
-    if (taosWriteFile(pBuf->filePtr, buf, bufLen) != bufLen) {
+    int32_t ret = taosWriteFile(pBuf->filePtr, buf, bufLen);
+    if (ret < 0) {
       return terrno;
     }
   } else {
-    if (taosWriteFile(pBuf->pCols[colIndex].filePtr, buf, bufLen) != bufLen) {
+    int32_t ret = taosWriteFile(pBuf->pCols[colIndex].filePtr, buf, bufLen);
+    if (ret < 0) {
       return terrno;
     }
   }