diff --git a/xCAT-server/share/xcat/scripts/setup-dockerhost-cert.sh b/xCAT-server/share/xcat/scripts/setup-dockerhost-cert.sh
index df541525d..f23632e0b 100755
--- a/xCAT-server/share/xcat/scripts/setup-dockerhost-cert.sh
+++ b/xCAT-server/share/xcat/scripts/setup-dockerhost-cert.sh
@@ -43,7 +43,7 @@ if [ ! -e $XCATDOCKERCADIR/openssl.cnf ]; then
   echo -n "$XCATDOCKERCADIR/openssl.cnf not exist"
   exit 1
 fi
-sed -i "s@^dir.*=.*/etc/xcat/ca@dir = $XCATDOCKERCADIR@g" $XCATDOCKERCADIR/openssl.cnf 
+sed -i "s@^dir.*=.*/etc/xcat/ca@dir = $XCATDOCKERCADIR@g" $XCATDOCKERCADIR/openssl.cnf
 
 if [  -e $XCATDOCKERCADIR/index ]; then
   rm -f $XCATDOCKERCADIR/index*