diff --git a/src/ESPAsyncWebServer.h b/src/ESPAsyncWebServer.h
index 62db448..26614ee 100644
--- a/src/ESPAsyncWebServer.h
+++ b/src/ESPAsyncWebServer.h
@@ -556,7 +556,7 @@ using ArMiddlewareCallback = std::function<void(AsyncWebServerRequest* request,
 class AsyncMiddleware {
   public:
     virtual ~AsyncMiddleware() {}
-    virtual void run(AsyncWebServerRequest* request, ArMiddlewareNext next) {
+    virtual void run(__unused AsyncWebServerRequest* request, __unused ArMiddlewareNext next) {
       return next();
     };