diff --git a/lib/extension/widget_extension.dart b/lib/extension/widget_extension.dart
index 81e297c..c77742f 100644
--- a/lib/extension/widget_extension.dart
+++ b/lib/extension/widget_extension.dart
@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 extension WidgetExt on Widget {
   Widget get expanded => Expanded(child: this);
   Widget get center => Center(child: this);
-  Widget paddingExt(double horizontal, [double vertical]) => Padding(
+  Widget paddingExt(double horizontal, [double vertical = 0]) => Padding(
         padding: EdgeInsets.symmetric(
           horizontal: horizontal,
           vertical: vertical,