diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 10867b81ae..5421821f7c 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -496,7 +496,6 @@ static EDealRes translateValue(STranslateContext* pCxt, SValueNode* pVal) {
           return generateDealNodeErrMsg(pCxt, TSDB_CODE_OUT_OF_MEMORY);
         }
         varDataSetLen(pVal->datum.p, pVal->node.resType.bytes);
-        pVal->node.resType.bytes += VARSTR_HEADER_SIZE;
         strncpy(varDataVal(pVal->datum.p), pVal->literal, pVal->node.resType.bytes);
         break;
       }