diff --git a/src/lib.rs b/src/lib.rs
index d496553..e876b0f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -15,7 +15,7 @@
 //!
 //! Add these dependencies to your `Cargo.toml` file.
 //!
-//! ```
+//! ```toml
 //! [dependencies]
 //! hyper-reverse-proxy = "0.3.0"
 //! hyper = "0.12.24"