diff --git a/actix-http/src/h1/encoder.rs b/actix-http/src/h1/encoder.rs
index 60062d559..4e9903284 100644
--- a/actix-http/src/h1/encoder.rs
+++ b/actix-http/src/h1/encoder.rs
@@ -632,8 +632,7 @@ mod tests {
 
         let mut res: Response<()> =
             Response::new(StatusCode::SWITCHING_PROTOCOLS).into_body::<()>();
-        res.headers_mut()
-            .insert(DATE, HeaderValue::from_static(""));
+        res.headers_mut().insert(DATE, HeaderValue::from_static(""));
         res.headers_mut()
             .insert(CONTENT_LENGTH, HeaderValue::from_static("0"));