diff --git a/src/lib.rs b/src/lib.rs
index 4ef91095f..b27f5d976 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -376,6 +376,7 @@ extern crate std;
 // Not public API. Used from macro-generated code.
 #[doc(hidden)]
 pub mod __private {
+    #[doc(hidden)]
     pub use alloc::vec;
 }