diff --git a/include/fc/fwd_impl.hpp b/include/fc/fwd_impl.hpp
index 1c8155d..53a4440 100644
--- a/include/fc/fwd_impl.hpp
+++ b/include/fc/fwd_impl.hpp
@@ -4,6 +4,7 @@
 #include <fc/fwd.hpp>
 #include <new>
 #include <type_traits>
+#include <utility>
 
 namespace fc {