diff --git a/packages/csharp-mono.test b/packages/csharp-mono.test
new file mode 100644
index 0000000..e91a2a2
--- /dev/null
+++ b/packages/csharp-mono.test
@@ -0,0 +1,9 @@
+using System;
+
+public class Test
+{
+    public static void Main(string[] args)
+    {
+        Console.WriteLine("OK");
+    }
+}
\ No newline at end of file