diff --git a/src/engine/mod.rs b/src/engine/mod.rs
index 77dcd14..f2cc33f 100644
--- a/src/engine/mod.rs
+++ b/src/engine/mod.rs
@@ -109,6 +109,7 @@ pub trait Engine: Send + Sync {
     ///     engine::GeneralPurpose::new(&alphabet::URL_SAFE, general_purpose::NO_PAD);
     ///
     /// let b64_url = CUSTOM_ENGINE.encode(b"hello internet~");
+    /// ```
     #[cfg(any(feature = "alloc", test))]
     #[inline]
     fn encode<T: AsRef<[u8]>>(&self, input: T) -> String {