diff --git a/scripts/backup b/scripts/backup
index d2af648..ba085b6 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -32,7 +32,9 @@ fi
 # Clean cache files before backup (saved some disk space)
 ynh_secure_remove --file=$install_dir/var/cache/prod
 
+
 if [ "$BACKUP_CORE_ONLY" ] ; then
+    ynh_print_warn --message="Backing up only the core... If you downloaded article images, they will not be saved."
     mv "$install_dir/web/assets/images" "/tmp/$app/web/assets/images"
     ynh_backup --src_path="$install_dir"
     mv "/tmp/$app/web/assets/images" "$install_dir/web/assets/images"