diff --git a/include/mapnik/util/geometry_wkt_generator.hpp b/include/mapnik/util/geometry_wkt_generator.hpp
index edb17838c..ee75c3dbd 100644
--- a/include/mapnik/util/geometry_wkt_generator.hpp
+++ b/include/mapnik/util/geometry_wkt_generator.hpp
@@ -42,14 +42,13 @@
 namespace boost { namespace spirit { namespace traits {
 
 // make gcc and darwin toolsets happy.
-//template <>
-//struct is_container<mapnik::geometry_container>
-//    : mpl::false_
-//{};
+template <>
+struct is_container<mapnik::geometry_container>
+    : mpl::false_
+{};
 
 }}}
 
-
 namespace mapnik { namespace util {
 
 namespace karma = boost::spirit::karma;