diff --git a/xCAT-test/autotest/testcase/installation/ubuntu_diskless_installation_vm b/xCAT-test/autotest/testcase/installation/ubuntu_diskless_installation_vm
index 3b5602313..62980140f 100644
--- a/xCAT-test/autotest/testcase/installation/ubuntu_diskless_installation_vm
+++ b/xCAT-test/autotest/testcase/installation/ubuntu_diskless_installation_vm
@@ -1,5 +1,7 @@
 start:Ubuntu_diskless_installation_flat_x86_vm
 os:Linux
+stop=yes
+
 cmd:copycds $$ISO
 check:rc==0
 cmd:if [[ "__GETNODEATTR($$CN,arch)__" =~ "x86_64" ]];then chdef -t node -o $$CN vmstorage=dir:///var/lib/libvirt/images/ && rmvm $$CN -f -p &&  mkvm $$CN -s 15G; fi