diff --git a/app.py b/app.py
index c530963..e8e7c6c 100644
--- a/app.py
+++ b/app.py
@@ -54,7 +54,7 @@ def delete_file(filename):
 
     file_path = os.path.join(app.config['UPLOAD_DIRECTORY'], filename)
     if not os.path.isfile(file_path):
-        return jsonify({'error': 'File \'{}\' not found'}), 404
+        return jsonify({'error': 'File not found'}), 404
 
     os.remove(file_path)
     return jsonify({'success': 'File \'{}\' successfully deleted'.format(filename)})