Index: uspace/lib/cpp/include/__bits/functional/functional.hpp
===================================================================
--- uspace/lib/cpp/include/__bits/functional/functional.hpp	(revision 9eea0b783493decf0abf11e5aa37be12b86e7706)
+++ uspace/lib/cpp/include/__bits/functional/functional.hpp	(revision 046b66e808c359758d9021ead91cfb8804d60dfb)
@@ -46,5 +46,5 @@
     decltype(auto) invoke(F&& f, Args&&... args)
     {
-        return aux::INVOKE(forward<F>(f)(forward<Args>(args)...));
+        return aux::INVOKE(forward<F>(f),forward<Args>(args)...);
     }