diff --git a/rename-host.sh b/rename-host.sh
index 1057e3c..6f980a6 100644
--- a/rename-host.sh
+++ b/rename-host.sh
@@ -8,8 +8,10 @@ fi
 
 if [ $NewHostname ]
 then
+  OldHostname=`hostname`
   hostnamectl set-hostname $NewHostname
-  echo "127.0.0.1 $NewHostname" >> /etc/hosts
+  sed -i "s|\b$OldHostname$\b|$NewHostname|g" /etc/hosts
+  # echo "127.0.0.1 $NewHostname" >> /etc/hosts
 else
   echo 'Nothing changed >>>'
 fi