diff --git a/README.md b/README.md
index 51174cd..3345295 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 .NET Generic Host support for Avaloniaui desktop app.
 Support Aot!
 - Examples:
-```
+```C#
 internal sealed class Program
 {
     [STAThread]