diff --git a/xCAT-test/autotest/testcase/get_install_disk/fresh_install_disk b/xCAT-test/autotest/testcase/get_install_disk/fresh_install_disk
index 7d1103be9..c75af50c8 100644
--- a/xCAT-test/autotest/testcase/get_install_disk/fresh_install_disk
+++ b/xCAT-test/autotest/testcase/get_install_disk/fresh_install_disk
@@ -56,7 +56,7 @@ check:output=~0x500a0751036d9e61
 check:output=~0x500a0751036d9e83
 check:output=~0x500a0751036d9e7a
 check:output=~0x500a0751036d9c24
-cmd:cat /tmp/__GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__fr_$$NO | grep "into wwn secondchoicedisks"
+cmd:cat /tmp/__GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__fr_$$NO | grep "into wwn thirdchoicedisks"
 check:output=~sda 0x500a0751036d9e61
 check:output=~sdb 0x500a0751036d9c24
 check:output=~sdc 0x500a0751036d9e7a