diff --git a/lib/input.dart b/lib/input.dart
index 4705e84..fd2503d 100644
--- a/lib/input.dart
+++ b/lib/input.dart
@@ -35,7 +35,7 @@ class _InputWidgetState extends State<InputWidget> {
   }
 
   var maskFormatter = MaskTextInputFormatter(
-    mask: '+# (###) ###-##-##',
+    mask: '--.--.--',
     filter: {"#": RegExp(r'[0-9]')},
     type: MaskAutoCompletionType.lazy,
   );