diff --git a/csharp/helloworld.cs b/csharp/helloworld.cs
index 6bcf54b..636d3e3 100644
--- a/csharp/helloworld.cs
+++ b/csharp/helloworld.cs
@@ -1,3 +1,4 @@
+// C# sample file
 namespace HelloWorld
 {
     class Hello 
@@ -7,4 +8,4 @@ namespace HelloWorld
             System.Console.WriteLine("Hello World!");
         }
     }
-}
\ No newline at end of file
+}