diff --git a/samples/SafeAreaDemo/ViewLocator.cs b/samples/SafeAreaDemo/ViewLocator.cs
index 99800f81c9..4f71fdbe9c 100644
--- a/samples/SafeAreaDemo/ViewLocator.cs
+++ b/samples/SafeAreaDemo/ViewLocator.cs
@@ -7,7 +7,7 @@ namespace SafeAreaDemo
 {
     public class ViewLocator : IDataTemplate
     {
-        public Control Build(object data)
+        public Control? Build(object? data)
         {
             if (data is null)
                 return null;