diff --git a/src/header/common/content_type.rs b/src/header/common/content_type.rs
index 71596066f4..0386a7d66f 100644
--- a/src/header/common/content_type.rs
+++ b/src/header/common/content_type.rs
@@ -98,4 +98,6 @@ impl ContentType {
     }
 }
 
+impl Eq for ContentType {}
+
 bench_header!(bench, ContentType, { vec![b"application/json; charset=utf-8".to_vec()] });