diff --git a/xCAT-test/autotest/testcase/installation/ubuntu_full_installation_vm_docker b/xCAT-test/autotest/testcase/installation/ubuntu_full_installation_vm_docker
index b2fa46c92..1b9a943c8 100644
--- a/xCAT-test/autotest/testcase/installation/ubuntu_full_installation_vm_docker
+++ b/xCAT-test/autotest/testcase/installation/ubuntu_full_installation_vm_docker
@@ -44,4 +44,6 @@ cmd:xdsh $$CN "docker pull $$DOCKERIMAGE"
 check:rc==0
 cmd:rmdef -t osimage -o __GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-install-dockerhost
 check:rc==0
+cmd: chdef $$CN postbootscripts=
+check:rc==0
 end