diff --git a/exercises/05_ticket_v2/15_outro/src/title.rs b/exercises/05_ticket_v2/15_outro/src/title.rs
index cb31996..7c26c93 100644
--- a/exercises/05_ticket_v2/15_outro/src/title.rs
+++ b/exercises/05_ticket_v2/15_outro/src/title.rs
@@ -1,5 +1,5 @@
 // TODO: Implement `TryFrom<String>` and `TryFrom<&str>` for the `TicketTitle` type,
-//   enforcing that the title is not empty and is not longer than 50 characters.
+//   enforcing that the title is not empty and is not longer than 50 bytes.
 //   Implement the traits required to make the tests pass too.
 
 pub struct TicketTitle(String);