diff --git a/include/boost/serialization/hash_map.hpp b/include/boost/serialization/hash_map.hpp index 39e98e64..ed3f765d 100644 --- a/include/boost/serialization/hash_map.hpp +++ b/include/boost/serialization/hash_map.hpp @@ -25,6 +25,7 @@ #include #include #include +#include #include namespace boost {