diff --git a/common/rfb/RawDecoder.h b/common/rfb/RawDecoder.h
index ca7c401..7a784c6 100644
--- a/common/rfb/RawDecoder.h
+++ b/common/rfb/RawDecoder.h
@@ -26,7 +26,7 @@
   public:
     RawDecoder(CConnection* conn);
     virtual ~RawDecoder();
-    virtual void readRect(const Rect& r, CMsgHandler* handler);
+    virtual void readRect(const Rect& r, ModifiablePixelBuffer* pb);
   };
 }
 #endif