diff --git a/mobile/lib/theme/app_theme.dart b/mobile/lib/theme/app_theme.dart
index 4a0b01e..878bd6e 100644
--- a/mobile/lib/theme/app_theme.dart
+++ b/mobile/lib/theme/app_theme.dart
@@ -171,7 +171,6 @@ class AppTheme {
           elevation: 0,
         ),
       ),
-      tonalButtonTheme: null,
       outlinedButtonTheme: OutlinedButtonThemeData(
         style: OutlinedButton.styleFrom(
           foregroundColor: ink,