Index: uspace/lib/cpp/include/impl/functional.hpp
===================================================================
--- uspace/lib/cpp/include/impl/functional.hpp	(revision 6283bf154f9194ffc532013fcc7cc95260eb3d3e)
+++ uspace/lib/cpp/include/impl/functional.hpp	(revision 94ac2eaca040c8045619208687c837f6d3ca3506)
@@ -640,5 +640,5 @@
         template<class F>
         class mem_fn_t
-            : public conditional_function_typedefs<remove_cv_t<remove_reference_t<T>>>
+            : public conditional_function_typedefs<remove_cv_t<remove_reference_t<F>>>
         {
             public: