diff --git a/scripts/change_url b/scripts/change_url
index 740c329..c559e20 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -32,12 +32,7 @@ ynh_change_url_nginx_config
 #=================================================
 ynh_script_progression --message="Updating a configuration file..."
 
-path=$new_path
-domain=$new_domain
-ynh_add_config --template="../conf/headphones.ini" --destination="/etc/$app/headphones.ini"
-
-chmod 600 "/etc/$app/headphones.ini"
-chown $app:$app "/etc/$app/headphones.ini"
+ynh_replace_string --match_string="^http_root = .*" --replace_string="http_root = $new_path" --target_file="/etc/$app/headphones.ini"
 
 #=================================================
 # GENERIC FINALISATION
diff --git a/scripts/upgrade b/scripts/upgrade
index f7a3043..9e4b0df 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -58,17 +58,6 @@ ynh_script_progression --message="Installing Python dependencies..."
 ynh_secure_remove --file="$install_dir/venv"
 python3 -m venv $install_dir/venv
 
-#=================================================
-# UPDATE A CONFIG FILE
-#=================================================
-ynh_script_progression --message="Updating a configuration file..."
-
-mkdir -p "/etc/$app"
-ynh_add_config --template="../conf/headphones.ini" --destination="/etc/$app/headphones.ini"
-
-chmod 600 "/etc/$app/headphones.ini"
-chown $app:$app "/etc/$app/headphones.ini"
-
 #=================================================
 # SETUP SYSTEMD
 #=================================================