diff --git a/xCAT-test/autotest/testcase/regnotif/case0 b/xCAT-test/autotest/testcase/regnotif/case0
index 2fcb65d2a..fe5a4aed9 100644
--- a/xCAT-test/autotest/testcase/regnotif/case0
+++ b/xCAT-test/autotest/testcase/regnotif/case0
@@ -37,7 +37,7 @@ end
 start:regnotif_h
 description:regnotif -h and --help
 label:mn_only,db
-cmd:regnotif -h 
+cmd:regnotif -h
 check:rc==0
 check:output=~Usage
 cmd:regnotif --help