Index: uspace/lib/cpp/include/__bits/system_error.hpp
===================================================================
--- uspace/lib/cpp/include/__bits/system_error.hpp	(revision 3faf90addd9cdd0dc3b59b702985bfe74ecedbd9)
+++ uspace/lib/cpp/include/__bits/system_error.hpp	(revision 0076b9d08217ab74cb57f3a302bc6cd3d6bf1879)
@@ -33,4 +33,5 @@
 #include <__bits/string/stringfwd.hpp>
 #include <stdexcept>
+#include <type_traits>
 
 namespace std