1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/rustc_attr_parsing/src/attributes/must_use.rs b/compiler/rustc_attr_parsing/src/attributes/must_use.rs
index d767abbc250..c88bb5a69e5 100644
--- a/compiler/rustc_attr_parsing/src/attributes/must_use.rs
+++ b/compiler/rustc_attr_parsing/src/attributes/must_use.rs
@@ -14,7 +14,10 @@ impl<S: Stage> SingleAttributeParser<S> for MustUseParser {
     const PATH: &[Symbol] = &[sym::must_use];
     const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost;
     const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::WarnButFutureError;
-    const TEMPLATE: AttributeTemplate = template!(Word, NameValueStr: "reason");
+    const TEMPLATE: AttributeTemplate = template!(
+        Word, NameValueStr: "reason",
+        "https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute"
+    );
 
     fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> {
         Some(AttributeKind::MustUse {