diff --git a/io/src/lib.rs b/io/src/lib.rs
index 3c020d0b4..0b7ee5093 100644
--- a/io/src/lib.rs
+++ b/io/src/lib.rs
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: CC0-1.0
 
-//! Rust-Bitcoin I/O Library
+//! # Rust Bitcoin I/O Library
 //!
 //! The [`std::io`] module is not exposed in `no-std` Rust so building `no-std` applications which
 //! require reading and writing objects via standard traits is not generally possible. Thus, this