diff --git a/hashes/src/lib.rs b/hashes/src/lib.rs
index c42f38cd2..c8ac1e2d3 100644
--- a/hashes/src/lib.rs
+++ b/hashes/src/lib.rs
@@ -74,8 +74,8 @@ extern crate core;
 #[cfg(feature = "bitcoin-io")]
 extern crate bitcoin_io as io;
 
-#[cfg(feature = "serde")]
 /// A generic serialization/deserialization framework.
+#[cfg(feature = "serde")]
 pub extern crate serde;
 
 #[cfg(all(test, feature = "serde"))]