diff --git a/tests/system-test/6-cluster/5dnode3mnodeSep1VnodeStopDnodeCreateStb.py b/tests/system-test/6-cluster/5dnode3mnodeSep1VnodeStopDnodeCreateStb.py
index 62f4b248f9..00f0472db3 100644
--- a/tests/system-test/6-cluster/5dnode3mnodeSep1VnodeStopDnodeCreateStb.py
+++ b/tests/system-test/6-cluster/5dnode3mnodeSep1VnodeStopDnodeCreateStb.py
@@ -172,7 +172,7 @@ class TDTestCase:
 
     def run(self):
         # print(self.master_dnode.cfgDict)
-        self.fiveDnodeThreeMnode(dnodeNumbers=6,mnodeNums=3,restartNumbers=2,stopRole='dnode')
+        self.fiveDnodeThreeMnode(dnodeNumbers=5,mnodeNums=3,restartNumbers=2,stopRole='dnode')
 
     def stop(self):
         tdSql.close()