diff --git a/include/mapnik/json/feature_grammar.hpp b/include/mapnik/json/feature_grammar.hpp
index 38bba2453..88049cd56 100644
--- a/include/mapnik/json/feature_grammar.hpp
+++ b/include/mapnik/json/feature_grammar.hpp
@@ -75,8 +75,7 @@ struct put_property
     template <typename T0,typename T1, typename T2>
     result_type operator() (T0 & feature, T1 const& key, T2 const& val) const
     {
-        mapnik::value v = boost::apply_visitor(attribute_value_visitor(tr_),val); // TODO: optimize
-        feature.put_new(key, v);
+        feature.put_new(key, boost::apply_visitor(attribute_value_visitor(tr_),val));
     }
     mapnik::transcoder const& tr_;
 };
diff --git a/plugins/input/topojson/topojson_featureset.cpp b/plugins/input/topojson/topojson_featureset.cpp
index bd90c711b..4e7a18eff 100644
--- a/plugins/input/topojson/topojson_featureset.cpp
+++ b/plugins/input/topojson/topojson_featureset.cpp
@@ -64,7 +64,6 @@ void assign_properties(mapnik::feature_impl & feature, T const& geom, mapnik::tr
     {
         for (auto const& p : *geom.props)
         {
-            //mapnik::value v = boost::apply_visitor(attribute_value_visitor(tr),std::get<1>(p));
             feature.put_new(std::get<0>(p), boost::apply_visitor(attribute_value_visitor(tr),std::get<1>(p)));
         }
     }