diff --git a/lib/text_field/as_search_text_field.dart b/lib/text_field/as_search_text_field.dart
index 7e24e1e..eafb675 100644
--- a/lib/text_field/as_search_text_field.dart
+++ b/lib/text_field/as_search_text_field.dart
@@ -73,6 +73,7 @@ class _ASSearchTextFieldState extends State<ASSearchTextField> {
             vertical: 3.w,
           ),
       child: MaterialButton(
+        materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
         padding: EdgeInsets.zero,
         color: Color(0xFFF8F8F8),
         elevation: 0,