diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index 8ede489523..109bb16f51 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -557,7 +557,7 @@ int32_t cfgSetItemVal(SConfigItem *pItem, const char *name, const char *value, E
       break;
   }
 
-  TAOS_RETURN(TSDB_CODE_SUCCESS);
+  TAOS_RETURN(code);
 }
 
 SConfigItem *cfgGetItem(SConfig *pCfg, const char *pName) {
diff --git a/tests/system-test/0-others/qmemCtrl.py b/tests/system-test/0-others/qmemCtrl.py
index 2aacc2c6ed..a2eedbec0e 100644
--- a/tests/system-test/0-others/qmemCtrl.py
+++ b/tests/system-test/0-others/qmemCtrl.py
@@ -19,7 +19,7 @@ from util.common import *
 from util.sqlset import *
 
 class TDTestCase:
-    updatecfgDict = {'queryUseMemoryPool':'true','minReservedMemorySize':1025, 'singleQueryMaxMemorySize': 0}
+    updatecfgDict = {'forceReadConfig':'1','queryUseMemoryPool':'true','minReservedMemorySize':1025, 'singleQueryMaxMemorySize': 0}
     def init(self, conn, logSql, replicaVar=1):
         tdLog.debug("start to execute %s" % __file__)
         tdSql.init(conn.cursor())