diff --git a/unix/x0vncserver/PollingManager.h b/unix/x0vncserver/PollingManager.h
index 8abf029..25323b5 100644
--- a/unix/x0vncserver/PollingManager.h
+++ b/unix/x0vncserver/PollingManager.h
@@ -64,6 +64,8 @@
   VNCServer *m_server;
 
   Image *m_image;
+  int m_bytesPerPixel;
+
   int m_offsetLeft;
   int m_offsetTop;
   int m_width;