diff --git a/agg/include/agg_scanline_u.h b/agg/include/agg_scanline_u.h
index 5a28ed17e..f2e334853 100644
--- a/agg/include/agg_scanline_u.h
+++ b/agg/include/agg_scanline_u.h
@@ -454,6 +454,7 @@ namespace agg
     // The scanline container with alpha-masking
     // 
     //------------------------------------------------------------------------
+    /*
     template<class AlphaMask> 
     class scanline32_u8_am : public scanline32_u8
     {
@@ -490,7 +491,7 @@ namespace agg
     private:
         const AlphaMask* m_alpha_mask;
     };
-
+    */
 
 
 }