diff --git a/core/lib/src/rocket.rs b/core/lib/src/rocket.rs
index 8e176d38..edc1e49f 100644
--- a/core/lib/src/rocket.rs
+++ b/core/lib/src/rocket.rs
@@ -366,7 +366,7 @@ impl Rocket<Build> {
     ///     "Whoops! Looks like we messed up."
     /// }
     ///
-    /// #[catch(400)]
+    /// #[catch(404)]
     /// fn not_found(req: &Request) -> String {
     ///     format!("I couldn't find '{}'. Try something else?", req.uri())
     /// }