diff --git a/src/core/SkBitmap.cpp b/src/core/SkBitmap.cpp
index d87f001..9478fae 100644
--- a/src/core/SkBitmap.cpp
+++ b/src/core/SkBitmap.cpp
@@ -793,6 +793,8 @@
         canvas.drawBitmap(*this, 0, 0, &paint);
     }
 
+    tmp.setIsOpaque(this->isOpaque());
+
     dst->swap(tmp);
     return true;
 }