diff --git a/include/mapnik/cairo/render_polygon_pattern.hpp b/include/mapnik/cairo/render_polygon_pattern.hpp
index 98bb518a3..9e6e82dda 100644
--- a/include/mapnik/cairo/render_polygon_pattern.hpp
+++ b/include/mapnik/cairo/render_polygon_pattern.hpp
@@ -52,10 +52,9 @@ struct cairo_renderer_process_visitor_p
 
     void operator() (marker_svg const& marker)
     {
-        mapnik::rasterizer ras;
         mapnik::box2d<double> const& bbox_image = marker.get_data()->bounding_box() * image_tr_;
         mapnik::image_rgba8 image(bbox_image.width(), bbox_image.height());
-        render_pattern<image_rgba8>(ras, marker, image_tr_, 1.0, image);
+        render_pattern<image_rgba8>(marker, image_tr_, 1.0, image);
         cairo_pattern pattern(image, opacity_);
         pattern.set_extend(CAIRO_EXTEND_REPEAT);
         pattern.set_origin(offset_x_, offset_y_);
diff --git a/include/mapnik/renderer_common/render_pattern.hpp b/include/mapnik/renderer_common/render_pattern.hpp
index 4ecac8a77..fe127cf62 100644
--- a/include/mapnik/renderer_common/render_pattern.hpp
+++ b/include/mapnik/renderer_common/render_pattern.hpp
@@ -38,8 +38,7 @@ struct rasterizer;
 struct marker_svg;
 
 template <typename T>
-void render_pattern(rasterizer & ras,
-                    marker_svg const& marker,
+void render_pattern(marker_svg const& marker,
                     agg::trans_affine const& tr,
                     double opacity,
                     T & image);
diff --git a/src/agg/process_line_pattern_symbolizer.cpp b/src/agg/process_line_pattern_symbolizer.cpp
index 005c95744..2538b256a 100644
--- a/src/agg/process_line_pattern_symbolizer.cpp
+++ b/src/agg/process_line_pattern_symbolizer.cpp
@@ -199,7 +199,7 @@ struct agg_renderer_process_visitor_l
         if (image_transform) evaluate_transform(image_tr, feature_, common_.vars_, *image_transform, common_.scale_factor_);
         mapnik::box2d<double> const& bbox_image = marker.get_data()->bounding_box() * image_tr;
         image_rgba8 image(bbox_image.width(), bbox_image.height());
-        render_pattern<buffer_type>(ras_, marker, image_tr, 1.0, image);
+        render_pattern<buffer_type>(marker, image_tr, 1.0, image);
         render_by_pattern_type(image);
     }
 
diff --git a/src/agg/process_polygon_pattern_symbolizer.cpp b/src/agg/process_polygon_pattern_symbolizer.cpp
index 67e868c94..0e95317ec 100644
--- a/src/agg/process_polygon_pattern_symbolizer.cpp
+++ b/src/agg/process_polygon_pattern_symbolizer.cpp
@@ -85,7 +85,7 @@ struct agg_renderer_process_visitor_p
         if (image_transform) evaluate_transform(image_tr, feature_, common_.vars_, *image_transform, common_.scale_factor_);
         mapnik::box2d<double> const& bbox_image = marker.get_data()->bounding_box() * image_tr;
         mapnik::image_rgba8 image(bbox_image.width(), bbox_image.height());
-        render_pattern<buffer_type>(*ras_ptr_, marker, image_tr, 1.0, image);
+        render_pattern<buffer_type>(marker, image_tr, 1.0, image);
         render(image);
     }
 
diff --git a/src/cairo/process_line_pattern_symbolizer.cpp b/src/cairo/process_line_pattern_symbolizer.cpp
index ad7098b46..daa2d1056 100644
--- a/src/cairo/process_line_pattern_symbolizer.cpp
+++ b/src/cairo/process_line_pattern_symbolizer.cpp
@@ -65,13 +65,12 @@ struct prepare_pattern_visitor
     std::shared_ptr<cairo_pattern> operator() (mapnik::marker_svg const& marker)
     {
         double opacity = get<value_double, keys::opacity>(sym_, feature_, common_.vars_);
-        mapnik::rasterizer ras;
         agg::trans_affine image_tr = agg::trans_affine_scaling(common_.scale_factor_);
         auto image_transform = get_optional<transform_type>(sym_, keys::image_transform);
         if (image_transform) evaluate_transform(image_tr, feature_, common_.vars_, *image_transform, common_.scale_factor_);
         mapnik::box2d<double> const& bbox_image = marker.get_data()->bounding_box() * image_tr;
         mapnik::image_rgba8 image(bbox_image.width(), bbox_image.height());
-        render_pattern<image_rgba8>(ras, marker, image_tr, 1.0, image);
+        render_pattern<image_rgba8>(marker, image_tr, 1.0, image);
         width_ = image.width();
         height_ = image.height();
         return std::make_shared<cairo_pattern>(image, opacity);
diff --git a/src/renderer_common/render_pattern.cpp b/src/renderer_common/render_pattern.cpp
index 41ba3ee62..074fe6f00 100644
--- a/src/renderer_common/render_pattern.cpp
+++ b/src/renderer_common/render_pattern.cpp
@@ -41,8 +41,7 @@
 namespace mapnik {
 
 template <>
-void render_pattern<image_rgba8>(rasterizer & ras,
-                                 marker_svg const& marker,
+void render_pattern<image_rgba8>(marker_svg const& marker,
                                  agg::trans_affine const& tr,
                                  double opacity,
                                  image_rgba8 & image)
@@ -68,6 +67,7 @@ void render_pattern<image_rgba8>(rasterizer & ras,
                       svg_attribute_type,
                       renderer_solid,
                       pixfmt> svg_renderer(svg_path, marker.get_data()->attributes());
+    rasterizer ras;
 
     svg_renderer.render(ras, sl, renb, mtx, opacity, bbox);
 }