diff --git a/src/context/http.ts b/src/context/http.ts
index 7a68b3d..89ebf34 100644
--- a/src/context/http.ts
+++ b/src/context/http.ts
@@ -105,7 +105,7 @@ export class HttpContext extends BaseContext<HttpRequest, HttpResponse> {
     ).reduce(
       (acc, [key, [val]]) => ({
         ...acc,
-        [key.toLowerCase()]: val.length === 1 ? val[0] : val,
+        [key]: val.length === 1 ? val[0] : val,
       }),
       {}
     );