diff --git a/napi-inl.h b/napi-inl.h
index 102eaf5e2..1305c84b8 100644
--- a/napi-inl.h
+++ b/napi-inl.h
@@ -4098,7 +4098,7 @@ inline void AsyncProgressWorker<T>::Destroy() {
 }
 
 template<class T>
-inline void AsyncProgressWorker<T>::WorkProgress_(Napi::Env env, Napi::Function jsCallback, void* _data) {
+inline void AsyncProgressWorker<T>::WorkProgress_(Napi::Env /* env */, Napi::Function /* jsCallback */, void* _data) {
   AsyncProgressWorker* self = static_cast<AsyncProgressWorker*>(_data);
 
   T* data;