diff --git a/xCAT-test/autotest/testcase/makeknownhosts/cases0 b/xCAT-test/autotest/testcase/makeknownhosts/cases0
index afe1e371d..7bd31898b 100644
--- a/xCAT-test/autotest/testcase/makeknownhosts/cases0
+++ b/xCAT-test/autotest/testcase/makeknownhosts/cases0
@@ -33,11 +33,13 @@ description:delete known node entry from $ROOTHOME/.ssh
 cmd:makeknownhosts $$CN 
 cmd:cat ~/.ssh/known_hosts|grep $$CN
 check:output=~$$CN
+cmd:cat ~/.ssh/known_hosts|grep __GETNODEATTR($$CN,ip)__
+check:rc==0
 cmd:makeknownhosts $$CN -d
 check:rc==0
-cmd:cat ~/.ssh/known_hosts|grep $$CN
+cmd:cat ~/.ssh/known_hosts|grep __GETNODEATTR($$CN,ip)__ 
 check:rc!=0
-check:output!~$$CN
+check:output!~__GETNODEATTR($$CN,ip)__
 end
 
 start:makeknownhosts_node_v