diff --git a/include/utempl/tuple.hpp b/include/utempl/tuple.hpp
index 7b819f9..72ad36f 100644
--- a/include/utempl/tuple.hpp
+++ b/include/utempl/tuple.hpp
@@ -66,6 +66,9 @@ struct Tuple : public impl::TupleHelper<std::index_sequence_for<Ts...>, Ts...> {
   inline constexpr Tuple(const Tuple&) = default;
   inline constexpr Tuple(Tuple&&) = default;
   inline constexpr Tuple(Tuple&) = default;
+  inline constexpr Tuple& operator=(const Tuple&) = default;
+  inline constexpr Tuple& operator=(Tuple&&) = default;
+  inline constexpr Tuple& operator=(Tuple&) = default;
   inline constexpr Tuple() : 
     impl::TupleHelper<std::index_sequence_for<Ts...>, Ts...>() {};
   template <typename... TTs>