diff --git a/common/rfb/VNCServerST.h b/common/rfb/VNCServerST.h
index 9a1a44d..b7845dd 100644
--- a/common/rfb/VNCServerST.h
+++ b/common/rfb/VNCServerST.h
@@ -229,7 +229,7 @@
     void stopFrameClock();
     int msToNextUpdate();
     void writeUpdate();
-    bool checkUpdate();
+    Region getPendingRegion();
     const RenderedCursor* getRenderedCursor();
 
     void notifyScreenLayoutChange(VNCSConnectionST *requester);