diff --git a/app/routes.py b/app/routes.py
index b970d69..01962ce 100644
--- a/app/routes.py
+++ b/app/routes.py
@@ -116,7 +116,7 @@ def index():
 def files(path):
     base_path = app.config["BUTTERBOX_USB_PATH"]
     if not os.path.exists(base_path):
-        flash(_('No USB inserted.'))
+        return redirect(url_for('index'))
     current_path = os.path.join(base_path, path)
     render_files = []
     if os.path.exists(current_path):