diff --git a/src/Chapter04.Tests/Listing04.28.Tests.cs b/src/Chapter04.Tests/Listing04.28.Tests.cs
index 69ff45106..3296a0bfd 100644
--- a/src/Chapter04.Tests/Listing04.28.Tests.cs
+++ b/src/Chapter04.Tests/Listing04.28.Tests.cs
@@ -1,15 +1,15 @@
+using AddisonWesley.Michaelis.EssentialCSharp.Shared.Tests;
 
 namespace AddisonWesley.Michaelis.EssentialCSharp.Chapter04.Listing04_28.Tests;
 
 [TestClass]
 public class ProgramTests
 {
+    private static readonly string[] ExpectedErrorIds = new string[] { "CS0103" };
+
     [TestMethod]
-    public void MainTest()
+    public async Task CompileError_OutOfScope()
     {
-        const string expected = @"Enter the number of players (1 or 2):";
-
-        IntelliTect.TestTools.Console.ConsoleAssert.Expect(
-            expected, Program.Main);
+        await CompilerAssert.CompileAsync($"Listing04.28.OutOfScope.cs", ExpectedErrorIds);
     }
 }
diff --git a/src/Chapter04/Listing04.28.OutOfScope.cs b/src/Chapter04/Listing04.28.OutOfScope.cs
index cae91131c..ae436f5f5 100644
--- a/src/Chapter04/Listing04.28.OutOfScope.cs
+++ b/src/Chapter04/Listing04.28.OutOfScope.cs
@@ -27,12 +27,12 @@ public static void Main(string[] args)
         {
             // ...
         }
-        #if COMPILE_ERRR  //EXCLUDE
+        #if COMPILEERROR  //EXCLUDE
         #region HIGHLIGHT
         // ERROR: message is not in scope:
         Console.WriteLine(message);
         #endregion HIGHLIGHT
-        #endif // COMPILE_ERRR  //EXCLUDE
+        #endif // COMPILEERROR  //EXCLUDE
         #endregion INCLUDE
     }
 }