diff --git a/src/agg_renderer.cpp b/src/agg_renderer.cpp
index 230be4e52..092270582 100644
--- a/src/agg_renderer.cpp
+++ b/src/agg_renderer.cpp
@@ -184,6 +184,7 @@ namespace mapnik
       unsigned r=fill_.red();
       unsigned g=fill_.green();
       unsigned b=fill_.blue();
+      unsigned a=fill_.alpha();
       renderer ren(renb);
       
       ras_ptr->reset();
@@ -197,7 +198,7 @@ namespace mapnik
             ras_ptr->add_path(path);
          }
       }
-      ren.color(agg::rgba8(r, g, b, int(255 * sym.get_opacity())));
+      ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
       agg::render_scanlines(*ras_ptr, sl, ren);
    }
    
@@ -227,6 +228,7 @@ namespace mapnik
       unsigned r=fill_.red();
       unsigned g=fill_.green();
       unsigned b=fill_.blue();
+      unsigned a=fill_.alpha();
       renderer ren(renb);         
       agg::scanline_u8 sl;
      
@@ -275,7 +277,7 @@ namespace mapnik
                
                path_type faces_path (t_,*faces,prj_trans);
                ras_ptr->add_path(faces_path);
-               ren.color(agg::rgba8(int(r*0.8), int(g*0.8), int(b*0.8), int(255 * sym.get_opacity())));
+               ren.color(agg::rgba8(int(r*0.8), int(g*0.8), int(b*0.8), int(a * sym.get_opacity())));
                agg::render_scanlines(*ras_ptr, sl, ren);
                ras_ptr->reset();
                
@@ -308,7 +310,7 @@ namespace mapnik
             
             path_type roof_path (t_,*roof,prj_trans);
             ras_ptr->add_path(roof_path);
-            ren.color(agg::rgba8(r, g, b, int(255 * sym.get_opacity())));
+            ren.color(agg::rgba8(r, g, b, int(a * sym.get_opacity())));
             agg::render_scanlines(*ras_ptr, sl, ren);
          }
       }
@@ -334,6 +336,7 @@ namespace mapnik
       unsigned r=col.red();
       unsigned g=col.green();
       unsigned b=col.blue();
+      unsigned a=col.alpha();
       renderer ren(renb);
       ras_ptr->reset();
       agg::scanline_p8 sl;
@@ -409,7 +412,7 @@ namespace mapnik
             }
          }
       }
-      ren.color(agg::rgba8(r, g, b, int(255*stroke_.get_opacity())));
+      ren.color(agg::rgba8(r, g, b, int(a*stroke_.get_opacity())));
       agg::render_scanlines(*ras_ptr, sl, ren);
    }
    
@@ -693,6 +696,7 @@ namespace mapnik
       unsigned r = 0;// fill_.red();
       unsigned g = 0; //fill_.green();
       unsigned b = 255; //fill_.blue();
+      unsigned a = 255; //fill_.alpha();
       renderer ren(renb); 
       for (unsigned i=0;i<feature.num_geometries();++i)
       {
@@ -710,7 +714,7 @@ namespace mapnik
             ras_ptr->add_path(marker);
          }
       }
-      ren.color(agg::rgba8(r, g, b, 255));
+      ren.color(agg::rgba8(r, g, b, a));
       agg::render_scanlines(*ras_ptr, sl, ren);
    }
    
diff --git a/src/cairo_renderer.cpp b/src/cairo_renderer.cpp
index 480989dac..6d34f1b67 100644
--- a/src/cairo_renderer.cpp
+++ b/src/cairo_renderer.cpp
@@ -206,7 +206,7 @@ namespace mapnik
 
          void set_color(color const &color, double opacity = 1.0)
          {
-            set_color(color.red(), color.green(), color.blue(), opacity);
+            set_color(color.red(), color.green(), color.blue(), color.alpha() * opacity / 255.0);
          }
 
          void set_color(int r, int g, int b, double opacity = 1.0)
@@ -512,7 +512,7 @@ namespace mapnik
       if (bg)
       {
          cairo_context context(context_);
-         context.set_color(*bg, bg->alpha()/255.0);
+         context.set_color(*bg);
          context.paint();
       }
    }
@@ -647,7 +647,7 @@ namespace mapnik
 
                path_type faces_path(t_, *faces, prj_trans);
                context.set_color(int(fill.red() * 0.8), int(fill.green() * 0.8),
-                                 int(fill.blue() * 0.8), sym.get_opacity());
+                                 int(fill.blue() * 0.8), fill.alpha() * sym.get_opacity() / 255.0);
                context.add_path(faces_path);
                context.fill();