diff --git a/clippy_lints/src/use_self.rs b/clippy_lints/src/use_self.rs
index a8b7e8206814..b997d76d0e77 100644
--- a/clippy_lints/src/use_self.rs
+++ b/clippy_lints/src/use_self.rs
@@ -36,7 +36,7 @@ use crate::syntax_pos::symbol::keywords::SelfType;
 /// }
 /// ```
 /// could be
-/// ```
+/// ```rust
 /// struct Foo {}
 /// impl Foo {
 ///     fn new() -> Self {