diff --git a/include/mapnik/vertex_converters.hpp b/include/mapnik/vertex_converters.hpp
index a8ff2415c..b3444f934 100644
--- a/include/mapnik/vertex_converters.hpp
+++ b/include/mapnik/vertex_converters.hpp
@@ -98,7 +98,7 @@ struct converter_traits<T,mapnik::simplify_tag>
     template <typename Args>
     static void setup(geometry_type & geom, Args const& args)
     {
-        geom.set_simplify_algorithm(static_cast<simplify_algorithm_e>(get<simplify_algorithm_e,keys::simplify_algorithm>(args.sym, args.feature, args.vars)));
+        geom.set_simplify_algorithm(get<simplify_algorithm_e,keys::simplify_algorithm>(args.sym, args.feature, args.vars));
         geom.set_simplify_tolerance(get<value_double,keys::simplify_tolerance>(args.sym,args.feature, args.vars));
     }
 };