diff --git a/include/mapnik/symbolizer.hpp b/include/mapnik/symbolizer.hpp
index 92df57b47..0fd600e7a 100644
--- a/include/mapnik/symbolizer.hpp
+++ b/include/mapnik/symbolizer.hpp
@@ -551,8 +551,6 @@ using symbolizer = boost::variant<point_symbolizer,
                                   group_symbolizer,
                                   debug_symbolizer>;
 
-using dash_array = std::vector<std::pair<double,double> >;
-
 }
 
 #endif // MAPNIK_SYMBOLIZER_HPP