diff --git a/scripts/install b/scripts/install
index dcb42f3..a6a7cf8 100644
--- a/scripts/install
+++ b/scripts/install
@@ -36,7 +36,7 @@ sudo apt-get install -y mumble-server > /dev/null 2>&1
 sudo sed -i "s/welcometext=.*/welcometext=$welcometext/g" $mumble_conf
 sudo sed -i "s/port=.*/port=$port/g" $mumble_conf
 sudo sed -i "s/serverpassword=.*/serverpassword=$server_password/g" $mumble_conf
-sudo echo "registerName=$registerName" | sudo tee -a $mumble_conf
+sudo sed -i "s/*serverpassword=.*/registerName=$registerName/g" $mumble_conf
 
 #generating random password for super-user
 su_passwd=$(dd if=/dev/urandom bs=1 count=200 2> /dev/null | tr -c -d '[A-Za-z0-9]' | sed -n 's/\(.\{24\}\).*/\1/p')