diff --git a/src/auto_vary.rs b/src/auto_vary.rs
index 28af482..e51eb20 100644
--- a/src/auto_vary.rs
+++ b/src/auto_vary.rs
@@ -28,9 +28,12 @@ use crate::{HxRequest, HxTarget, HxTrigger, HxTriggerName};
 const MIDDLEWARE_DOUBLE_USE: &str =
     "Configuration error: `axum_httpx::vary_middleware` is used twice";
 
-/// Addresses [htmx caching issue](https://htmx.org/docs/#caching)
-/// by automatically adding a corresponding `Vary` header when [`HxRequest`],
-///  [`HxTarget`], [`HxTrigger`], [`HxTriggerName`] or their combination is used.
+/// Automatically adds a `Vary` header when needed.
+///
+/// Addresses [htmx caching issues](https://htmx.org/docs/#caching)
+/// by automatically adding a corresponding `Vary` header when
+/// [`HxRequest`], [`HxTarget`], [`HxTrigger`], [`HxTriggerName`]
+/// or their combination is used.
 #[derive(Clone)]
 pub struct AutoVaryLayer;
 
diff --git a/src/guard.rs b/src/guard.rs
index 86ca938..9584771 100644
--- a/src/guard.rs
+++ b/src/guard.rs
@@ -96,7 +96,7 @@ mod private {
         }
     }
 
-    impl<'a, F, B, E> Future for ResponseFuture<'a, F>
+    impl<F, B, E> Future for ResponseFuture<'_, F>
     where
         F: Future<Output = Result<Response<B>, E>>,
         B: Default,