diff --git a/xCAT-test/autotest/testcase/installation/linux_diskless_installation b/xCAT-test/autotest/testcase/installation/linux_diskless_installation
index d02eeca45..22c838ddf 100644
--- a/xCAT-test/autotest/testcase/installation/linux_diskless_installation
+++ b/xCAT-test/autotest/testcase/installation/linux_diskless_installation
@@ -2,7 +2,7 @@ start:Linux_diskless_installation_flat
 os:Linux
 cmd:rscan __GETNODEATTR($$CN,hcp)__ -w
 check:rc==0
-cmd:makedns
+cmd:makedns -n
 check:rc==0
 cmd:service named restart
 check:rc==0