diff --git a/common/rfb/VNCSConnectionST.h b/common/rfb/VNCSConnectionST.h
index d5c7a36..c1750b9 100644
--- a/common/rfb/VNCSConnectionST.h
+++ b/common/rfb/VNCSConnectionST.h
@@ -125,7 +125,8 @@
     virtual void keyEvent(rdr::U32 key, bool down);
     virtual void clientCutText(const char* str, int len);
     virtual void framebufferUpdateRequest(const Rect& r, bool incremental);
-    virtual void setDesktopSize(int fb_width, int fb_height);
+    virtual void setDesktopSize(int fb_width, int fb_height,
+                                const ScreenSet& layout);
     virtual void setInitialColourMap();
     virtual void supportsLocalCursor();