index 897f59f530..c94a4a804f 100644
--- a/library/core/src/os/mod.rs
+++ b/library/core/src/os/mod.rs
@@ -1,6 +1,7 @@
 //! OS-specific functionality.

 #![unstable(feature = "darwin_objc", issue = "145496")]
+#[allow(missing_docs)]

 #[cfg(all(
     doc,