diff --git a/src/lib.rs b/src/lib.rs
index 68b5af98..8430640a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -208,7 +208,7 @@
 )]
 #![no_std]
 #![warn(rust_2018_idioms, unused_lifetimes, missing_docs)]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 
 #[macro_use]
 extern crate cfg_if;