diff --git a/libs/wgpu/include/psemek/wgpu/chained_struct.hpp b/libs/wgpu/include/psemek/wgpu/chained_struct.hpp
index 2e018d99..9d35f39f 100644
--- a/libs/wgpu/include/psemek/wgpu/chained_struct.hpp
+++ b/libs/wgpu/include/psemek/wgpu/chained_struct.hpp
@@ -66,10 +66,17 @@ namespace psemek::wgpu
 	struct chained_struct
 	{
 		template <typename T>
+		requires(!std::is_same_v<std::remove_reference_t<T>, chained_struct>)
 		chained_struct(T && value)
 			: impl_(to_chained_struct(std::move(value)))
 		{}
 
+		chained_struct(chained_struct const &) = default;
+		chained_struct(chained_struct &&) = default;
+
+		chained_struct & operator = (chained_struct const &) = default;
+		chained_struct & operator = (chained_struct &&) = default;
+
 		void * ptr() const
 		{
 			return impl_->ptr();