diff --git a/xCAT-test/autotest/testcase/installation/customize_sleep_for_sn b/xCAT-test/autotest/testcase/installation/customize_sleep_for_sn
index 75be09f11..9ad77f007 100755
--- a/xCAT-test/autotest/testcase/installation/customize_sleep_for_sn
+++ b/xCAT-test/autotest/testcase/installation/customize_sleep_for_sn
@@ -31,5 +31,5 @@ while ($timecnt < 120) {
     $timecnt++;
 }
 
-print ">>>Leave $program_name\n"; 
+print ">>>Leave $program_name\n";
 exit 0;