diff --git a/packaging/cfg/taos.cfg b/packaging/cfg/taos.cfg
index 59f87b0a1f8d3aa192383457a85e1d53b1a3bf54..46e27b98e9339cb0cb0cb0d8fe0d038bde926148 100644
--- a/packaging/cfg/taos.cfg
+++ b/packaging/cfg/taos.cfg
@@ -43,7 +43,7 @@
 keepColumnName            1
 
 # number of management nodes in the system
-# numOfMnodes               3
+# numOfMnodes               1
 
 # enable/disable backuping vnode directory when removing vnode
 # vnodeBak                  1