diff --git a/src/haxe/ru/m/puzzlez/render/RenderUtil.hx b/src/haxe/ru/m/puzzlez/render/RenderUtil.hx
index 95a52d3..0d8cc01 100644
--- a/src/haxe/ru/m/puzzlez/render/RenderUtil.hx
+++ b/src/haxe/ru/m/puzzlez/render/RenderUtil.hx
@@ -46,7 +46,7 @@ class RenderUtil {
         var image = new BitmapData(Std.int(mask.rect.width), Std.int(mask.rect.height), true, 0x00000000);
         var matrix = new Matrix();
         matrix.translate(-mask.rect.x, -mask.rect.y);
-        image.draw(canvas, matrix);
+        image.draw(canvas, matrix, null, null, null, true);
         var borderWidth = image.width * 0.02;
         var borderAlpha = 1.0;
         #if flash