diff --git a/deps/agg/include/agg_conv_adaptor_vcgen.h b/deps/agg/include/agg_conv_adaptor_vcgen.h
index a79f2208c..ddbcef738 100644
--- a/deps/agg/include/agg_conv_adaptor_vcgen.h
+++ b/deps/agg/include/agg_conv_adaptor_vcgen.h
@@ -29,6 +29,7 @@ namespace agg
 
         void rewind(unsigned) {}
         unsigned vertex(double*, double*) { return path_cmd_stop; }
+        unsigned type() const { return 0; }
     };
 
 
@@ -64,6 +65,7 @@ namespace agg
         }
 
         unsigned vertex(double* x, double* y);
+        unsigned type() const { return m_source->type(); }
 
     private:
         // Prohibit copying
diff --git a/deps/agg/include/agg_conv_adaptor_vpgen.h b/deps/agg/include/agg_conv_adaptor_vpgen.h
index d6b545ef1..ae8d59320 100644
--- a/deps/agg/include/agg_conv_adaptor_vpgen.h
+++ b/deps/agg/include/agg_conv_adaptor_vpgen.h
@@ -33,6 +33,7 @@ namespace agg
 
         void rewind(unsigned path_id);
         unsigned vertex(double* x, double* y);
+        unsigned type() const { return m_source->type(); }
 
     private:
         conv_adaptor_vpgen(const conv_adaptor_vpgen<VertexSource, VPGen>&);
diff --git a/deps/agg/include/agg_conv_clip_polygon.h b/deps/agg/include/agg_conv_clip_polygon.h
index 87537638d..79aceedf3 100644
--- a/deps/agg/include/agg_conv_clip_polygon.h
+++ b/deps/agg/include/agg_conv_clip_polygon.h
@@ -51,6 +51,7 @@ namespace agg
         double y1() const { return base_type::vpgen().y1(); }
         double x2() const { return base_type::vpgen().x2(); }
         double y2() const { return base_type::vpgen().y2(); }
+        unsigned type() const { return base_type::type(); }
 
     private:
         conv_clip_polygon(const conv_clip_polygon<VertexSource>&);
diff --git a/deps/agg/include/agg_conv_clip_polyline.h b/deps/agg/include/agg_conv_clip_polyline.h
index f3fc2888c..8bad5964f 100644
--- a/deps/agg/include/agg_conv_clip_polyline.h
+++ b/deps/agg/include/agg_conv_clip_polyline.h
@@ -51,6 +51,7 @@ namespace agg
         double y1() const { return base_type::vpgen().y1(); }
         double x2() const { return base_type::vpgen().x2(); }
         double y2() const { return base_type::vpgen().y2(); }
+        unsigned type() const { return base_type::type(); }
 
     private:
         conv_clip_polyline(const conv_clip_polyline<VertexSource>&);
diff --git a/deps/agg/include/agg_conv_smooth_poly1.h b/deps/agg/include/agg_conv_smooth_poly1.h
index 4ac4e3d6e..00ab6b6af 100644
--- a/deps/agg/include/agg_conv_smooth_poly1.h
+++ b/deps/agg/include/agg_conv_smooth_poly1.h
@@ -42,6 +42,7 @@ namespace agg
 
         void   smooth_value(double v) { base_type::generator().smooth_value(v); }
         double smooth_value() const { return base_type::generator().smooth_value(); }
+        unsigned type() const { return base_type::type(); }
 
     private:
         conv_smooth_poly1(const conv_smooth_poly1<VertexSource>&);
@@ -64,6 +65,7 @@ namespace agg
 
         void   smooth_value(double v) { m_smooth.generator().smooth_value(v); }
         double smooth_value() const { return m_smooth.generator().smooth_value(); }
+        unsigned type() const { return m_smooth.type(); }
 
     private:
         conv_smooth_poly1_curve(const conv_smooth_poly1_curve<VertexSource>&);