diff --git a/3party/boost/boost/polygon/polygon_90_set_data.hpp b/3party/boost/boost/polygon/polygon_90_set_data.hpp
index 151cb9d259..99a2bba3c0 100644
--- a/3party/boost/boost/polygon/polygon_90_set_data.hpp
+++ b/3party/boost/boost/polygon/polygon_90_set_data.hpp
@@ -25,6 +25,7 @@
 #include "detail/property_merge.hpp"
 #include "detail/polygon_90_touch.hpp"
 #include "detail/iterator_geometry_to_set.hpp"
+#include "detail/polygon_sort_adaptor.hpp"
 
 namespace boost { namespace polygon{
   template <typename ltype, typename rtype, typename op_type>