diff --git a/src/query/src/qSqlParser.c b/src/query/src/qSqlParser.c
index f927287015bf56f09c99d992b18fd2d226cb15f5..6140abdaca64d5014e9ec5ebe11ff32979a320df 100644
--- a/src/query/src/qSqlParser.c
+++ b/src/query/src/qSqlParser.c
@@ -505,7 +505,7 @@ tSqlExpr *tSqlExprClone(tSqlExpr *pSrc) {
   tSqlExpr *pExpr = calloc(1, sizeof(tSqlExpr));
 
   memcpy(pExpr, pSrc, sizeof(*pSrc));
-  
+
   if (pSrc->pLeft) {
     pExpr->pLeft = tSqlExprClone(pSrc->pLeft);
   }
@@ -518,7 +518,7 @@ tSqlExpr *tSqlExprClone(tSqlExpr *pSrc) {
   tVariantAssign(&pExpr->value, &pSrc->value);
 
   //we don't clone paramList now because clone is only used for between/and
-  assert(pSrc->Expr.paramList == NULL);
+  pSrc->Expr.paramList = NULL;
   return pExpr;
 }