diff --git a/library/std/src/primitive_docs.rs b/library/std/src/primitive_docs.rs
index 7aca5451ebc..c077512f80a 100644
--- a/library/std/src/primitive_docs.rs
+++ b/library/std/src/primitive_docs.rs
@@ -924,6 +924,7 @@ mod prim_usize {}
 
 #[doc(primitive = "reference")]
 #[doc(alias = "&")]
+#[doc(alias = "&mut")]
 //
 /// References, both shared and mutable.
 ///