diff --git a/manifest.json b/manifest.json
index 5a3d7e8..82f6880 100644
--- a/manifest.json
+++ b/manifest.json
@@ -18,7 +18,8 @@
 	},
 	"multi_instance": true,
 	"services": [
-		"python"
+		"nginx",
+		"mopidy"
 	],
 	"arguments": {
 		"install" : [
diff --git a/scripts/backup b/scripts/backup
index 84dc0dc..58ada1a 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -3,25 +3,18 @@
 # Exit on command errors and treat unset variables as an error
 set -eu
 
-# The parameter $1 is the backup directory location dedicated to the app
-backup_dir=$1
-
-# The parameter $2 is theid of the app instance
+# Get multi-instances specific variables
 app=$YNH_APP_INSTANCE_NAME
 
 # Source app helpers
 source /usr/share/yunohost/helpers
 
-domain=$(ynh_app_setting_get $app domain)
-final_path=$(ynh_app_setting_get $app final_path)
+# Retrieve app settings
+domain=$(ynh_app_setting_get "$app" domain)
 
-# Copy the app web files
-sudo mkdir -p ${backup_dir}/var/www
-sudo cp -a $final_path "${backup_dir}/var/www/$app"
-# Copy the music files
-sudo mkdir -p ${backup_dir}/var/lib/$app/
-sudo cp -a $final_path "${backup_dir}/var/lib/$app"
+# Copy the app files
+final_path="/var/www/${app}"
+ynh_backup "$final_path" "sources" 1
 
-# Copy the conf files
-sudo mkdir -p "${backup_dir}/conf"
-sudo cp -a /etc/nginx/conf.d/$domain.d/$app.conf "${backup_dir}/conf/nginx.conf"
+# Copy the nginx conf files
+ynh_backup "/etc/nginx/conf.d/${domain}.d/${app}.conf" "nginx.conf"
\ No newline at end of file