diff --git a/common/rfb/PixelBuffer.h b/common/rfb/PixelBuffer.h
index fc35a7d..d721fa2 100644
--- a/common/rfb/PixelBuffer.h
+++ b/common/rfb/PixelBuffer.h
@@ -141,6 +141,7 @@
 
   protected:
     FullFramePixelBuffer();
+    void (*fillRectFn)(rdr::U8 *, int, const Rect&, Pixel);
   };
 
   // -=- Managed pixel buffer class