diff --git a/include/mapnik/text/symbolizer_helpers.hpp b/include/mapnik/text/symbolizer_helpers.hpp
index c7e23a37e..ce31a04b7 100644
--- a/include/mapnik/text/symbolizer_helpers.hpp
+++ b/include/mapnik/text/symbolizer_helpers.hpp
@@ -43,7 +43,7 @@ struct placement_finder_adapter
           points_on_line_(points_on_line) {}
 
     template <typename PathT>
-    void add_path(PathT & path)
+    void add_path(PathT & path) const
     {
         status_ = finder_.find_line_placements(path, points_on_line_);
     }
diff --git a/src/text/symbolizer_helpers.cpp b/src/text/symbolizer_helpers.cpp
index 3f558fad3..03e5bc148 100644
--- a/src/text/symbolizer_helpers.cpp
+++ b/src/text/symbolizer_helpers.cpp
@@ -335,7 +335,7 @@ bool text_symbolizer_helper::next_line_placement() const
         {
             auto const& line = util::get<geometry::line_string<double> const>(*geo_itr_);
             geometry::line_string_vertex_adapter<double> va(line);
-            //converter_.apply(va, adapter_);
+            converter_.apply(va, adapter_);
             if (adapter_.status())
             {
                 //Found a placement