diff --git a/src/libstd/prelude/mod.rs b/src/libstd/prelude/mod.rs
index 1fbd17ede08..0496944dbaf 100644
--- a/src/libstd/prelude/mod.rs
+++ b/src/libstd/prelude/mod.rs
@@ -35,5 +35,7 @@
 //! pervasive that it would be obnoxious to import for every use, particularly
 //! those that define methods on primitive types.
 
+#![stable]
+
 #[stable]
 pub mod v1;