diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 3200dfd893..80f396544a 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -6494,7 +6494,7 @@ static void freeQInfo(SQInfo *pQInfo) {
 
   qDebug("QInfo:%p start to free QInfo", pQInfo);
 
-  releaseQueryBuf(pQInfo->tableqinfoGroupInfo.numOfTables);
+  releaseQueryBuf((int32_t) pQInfo->tableqinfoGroupInfo.numOfTables);
 
   teardownQueryRuntimeEnv(&pQInfo->runtimeEnv);