diff --git a/include/gpu/SkGpuDevice.h b/include/gpu/SkGpuDevice.h
index d394d12..631cc06 100644
--- a/include/gpu/SkGpuDevice.h
+++ b/include/gpu/SkGpuDevice.h
@@ -142,7 +142,8 @@
     
     // overrides from SkDevice
     virtual bool onReadPixels(const SkBitmap& bitmap,
-                              int x, int y) SK_OVERRIDE;
+                              int x, int y,
+                              SkCanvas::Config8888 config8888) SK_OVERRIDE;
 
 
 private: