diff --git a/library/std/src/keyword_docs.rs b/library/std/src/keyword_docs.rs
index b990b78570393..54f4eb22d6a1c 100644
--- a/library/std/src/keyword_docs.rs
+++ b/library/std/src/keyword_docs.rs
@@ -2175,6 +2175,7 @@ mod where_keyword {}
 
 // 2018 Edition keywords
 
+#[doc(alias = "promise")]
 #[doc(keyword = "async")]
 //
 /// Return a [`Future`] instead of blocking the current thread.