diff --git a/scripts/backup b/scripts/backup
index d96fd87..67278fd 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -29,6 +29,7 @@ app=$YNH_APP_INSTANCE_NAME
 
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
diff --git a/scripts/change_url b/scripts/change_url
index 7a88500..6e031f0 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -31,6 +31,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 
 # Add settings here as needed by your application
 port=$(ynh_app_setting_get --app=$app --key=port)
+datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 password=$(ynh_app_setting_get --app=$app --key=password)
 
 #=================================================