diff --git a/include/continuable/detail/traverse.hpp b/include/continuable/detail/traverse.hpp
index 44611b9..ec88031 100644
--- a/include/continuable/detail/traverse.hpp
+++ b/include/continuable/detail/traverse.hpp
@@ -555,9 +555,8 @@ struct tuple_like_remapper<strategy_traverse_tag, M, Base<OldArgs...>,
   M mapper_;
 
   template <typename... Args>
-  auto operator()(Args&&... args)
-      -> traits::void_t<decltype(std::declval<M>(),
-                                 std::declval<OldArgs>())...> {
+  auto operator()(Args&&... args) -> traits::void_t<
+      decltype(std::declval<M>()(std::declval<OldArgs>()))...> {
     int dummy[] = {0, ((void)mapper_(std::forward<Args>(args)), 0)...};
     (void)dummy;
   }