diff --git a/vncviewer/Viewport.h b/vncviewer/Viewport.h
index 30dacad..8e60da6 100644
--- a/vncviewer/Viewport.h
+++ b/vncviewer/Viewport.h
@@ -73,7 +73,7 @@
   void handleKeyPress(int keyCode, rdr::U32 keySym);
   void handleKeyRelease(int keyCode);
 
-  static bool handleXEvent(void *event, void *data);
+  static int handleSystemEvent(void *event, void *data);
 
   rdr::U32 translateKeyEvent(void);
   void handleFLTKKeyPress(void);