diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 56cee02f4dece7cc1006b2b7735d2c744c0e47cb..c5afbe6dba7708982ab329e4ed78433d3866f3f8 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -2744,6 +2744,7 @@ void tscHandleSubqueryError(SRetrieveSupport *trsupport, SSqlObj *pSql, int numO
       SSqlObj *userSql = ((SRetrieveSupport*)pParentSql->param)->pParentSql;
 
       tscFreeRetrieveSup(pParentSql);
+      tscFreeRetrieveSup(userSql);
 
       tscFreeSubobj(userSql);      
       tfree(userSql->pSubs);
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index ad04550e7773985f0c640ed08fa192a59717d44b..a79f50b63da902ed7306a362b4f5df5e60cb7a8b 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -3768,6 +3768,7 @@ static void tscSubqueryCompleteCallback(void* param, TAOS_RES* tres, int code) {
     SSqlObj *userSql = ((SRetrieveSupport*)pParentSql->param)->pParentSql;
 
     tscFreeRetrieveSup(pParentSql);
+    tscFreeRetrieveSup(userSql);
 
     tscFreeSubobj(userSql);    
     tfree(userSql->pSubs);