diff --git a/samples/sample_binary.lobster b/samples/sample_binary.lobster
index cd7adab..3c4851d 100644
--- a/samples/sample_binary.lobster
+++ b/samples/sample_binary.lobster
@@ -54,7 +54,7 @@
     .end()
 
 // Finish the buffer!
-b.Finish(orc)
+b.Finish(orc, "MONS")
 
 // We now have a FlatBuffer that we could store on disk or send over a network.