diff --git a/xCAT-test/autotest/testcase/installation/compare_postscripts b/xCAT-test/autotest/testcase/installation/compare_postscripts
index 30eed80fe..049024101 100644
--- a/xCAT-test/autotest/testcase/installation/compare_postscripts
+++ b/xCAT-test/autotest/testcase/installation/compare_postscripts
@@ -12,5 +12,5 @@ check:rc==0
 cmd:cat /tmp/diff.list
 check:rc==0
 
-cmd:rm -fr /tmp/mn; rm -fr /tmp/cn; rm /tmp/mn.tar; rm /tmp/diff.list"
+cmd:rm -fr /tmp/mn; rm -fr /tmp/cn; rm /tmp/mn.tar; rm /tmp/diff.list
 end