--- xfce4-cellmodem-plugin-0.0.5.dfsg.orig/panel-plugin/cellmodem.c
+++ xfce4-cellmodem-plugin-0.0.5.dfsg/panel-plugin/cellmodem.c
@@ -586,7 +586,7 @@ cellmodem_t_update_monitors( cellmodem_t
  */
 
 static void
-cellmodem_t_delete(cellmodem_t *monitor)
+cellmodem_t_delete(XfcePanelPlugin *plugin, cellmodem_t *monitor)
 {
     DEBUG("Destroying cellmodem object");
     cellmodem_t_close_modem( monitor /*, TRUE*/ );