diff --git a/plugins/input/geojson/geojson_featureset.cpp b/plugins/input/geojson/geojson_featureset.cpp
index 65bbc4c67..722108dc1 100644
--- a/plugins/input/geojson/geojson_featureset.cpp
+++ b/plugins/input/geojson/geojson_featureset.cpp
@@ -46,7 +46,7 @@ mapnik::feature_ptr geojson_featureset::next()
         geojson_datasource::item_type const& item = *index_itr_++;
         std::size_t index = item.second;
 #else
-        std::size_t const& index = *index_itr_++;
+        std::size_t index = *index_itr_++;
 #endif
         if ( index < features_.size())
         {