diff --git a/lib/utils/ui_utils.dart b/lib/utils/ui_utils.dart
index 3e855cd..d559f28 100644
--- a/lib/utils/ui_utils.dart
+++ b/lib/utils/ui_utils.dart
@@ -150,8 +150,8 @@ Future<bool> showConfirmDialog({
   if (title == null) title = tr("Confirm operation");
 
   // Avoid potential theme issues
-  var ctx = Scaffold.of(context).context;
-  ctx = ctx != null ? ctx : context;
+  final scaffold = Scaffold.of(context, nullOk: true);
+  final ctx = scaffold != null ? scaffold.context : context;
 
   final result = await showDialog<bool>(
       context: ctx,