diff --git a/exercises/08_enums/enums1.rs b/exercises/08_enums/enums1.rs
index c0d0c308d2..afe7562285 100644
--- a/exercises/08_enums/enums1.rs
+++ b/exercises/08_enums/enums1.rs
@@ -1,6 +1,7 @@
 #[derive(Debug)]
 enum Message {
     // TODO: Define a few types of messages as used below.
+    // These are simple enum variants (no values).
 }
 
 fn main() {