diff --git a/include/boost/geometry/algorithms/detail/is_valid/implementation.hpp b/include/boost/geometry/algorithms/detail/is_valid/implementation.hpp index 9ae226807..4a515a307 100644 --- a/include/boost/geometry/algorithms/detail/is_valid/implementation.hpp +++ b/include/boost/geometry/algorithms/detail/is_valid/implementation.hpp @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include