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-rw-r--r--compiler/rustc_lint/src/let_underscore.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_lint/src/let_underscore.rs b/compiler/rustc_lint/src/let_underscore.rs
index 78f355ec3d0..c8939256bbb 100644
--- a/compiler/rustc_lint/src/let_underscore.rs
+++ b/compiler/rustc_lint/src/let_underscore.rs
@@ -11,7 +11,8 @@ declare_lint! {
     /// scope.
     ///
     /// ### Example
-    /// ```
+    ///
+    /// ```rust
     /// struct SomeStruct;
     /// impl Drop for SomeStruct {
     ///     fn drop(&mut self) {