diff --git a/src/client/src/tscPrepare.c b/src/client/src/tscPrepare.c
index 725d9d9850a4079ec3f9b9e769b1b716543dd8f1..099ee77bc5d94d6542068f96af380462d358aa8f 100644
--- a/src/client/src/tscPrepare.c
+++ b/src/client/src/tscPrepare.c
@@ -1986,7 +1986,6 @@ TAOS_RES *taos_stmt_use_result(TAOS_STMT* stmt) {
     return NULL;
   }
   TAOS_RES* result = pStmt->pSql;
-  pStmt->pSql = NULL;
   return result;
 }
 
diff --git a/tests/script/api/stmt.c b/tests/script/api/stmt.c
index 685401ef28e39aff63fed35ae389680dc493ff1b..168d281f7062ae892643cd61c53e0448106201b7 100644
--- a/tests/script/api/stmt.c
+++ b/tests/script/api/stmt.c
@@ -468,7 +468,6 @@ void taos_stmt_use_result_query(void *taos, char *col, int type) {
   assert(taos_stmt_close(stmt) == 0);
   free(params);
   free(stmt_sql);
-  taos_free_result(result);
 }
 
 void taos_stmt_use_result_test() {