diff --git a/include/elem_circ.h b/include/elem_circ.h
index 73bcd32..369e191 100644
--- a/include/elem_circ.h
+++ b/include/elem_circ.h
@@ -280,8 +280,8 @@ public:
 
     using base_t::cursor;
 
-    template <typename F>
-    bool push(F&& f) noexcept {
+    template <typename F, typename... P>
+    bool push(F&& f, P&&...) noexcept {
         return base_t::push(this, std::forward<F>(f), block_);
     }
 
diff --git a/include/queue.h b/include/queue.h
index 3baa542..9b05d5b 100644
--- a/include/queue.h
+++ b/include/queue.h
@@ -119,7 +119,7 @@ public:
         if (elems_ == nullptr) return false;
         if (elems_->push([&](void* p) {
             ::new (p) T(std::forward<P>(params)...);
-        })) {
+        }, std::forward<P>(params)...)) {
             waiter_.broadcast();
             return true;
         }