diff -Naur xfce4-places-plugin-1.1.0/panel-plugin/xfce4-popup-places.c xfce4-places-plugin-1.1.0.tpg/panel-plugin/xfce4-popup-places.c
--- xfce4-places-plugin-1.1.0/panel-plugin/xfce4-popup-places.c	2008-06-07 18:01:09.000000000 +0000
+++ xfce4-places-plugin-1.1.0.tpg/panel-plugin/xfce4-popup-places.c	2009-03-08 22:13:22.000000000 +0000
@@ -75,7 +75,7 @@
     gev.send_event        = TRUE;
     gev.message_type      = gdk_atom_intern ("STRING", FALSE);
     gev.data_format       = 8;
-    g_snprintf (gev.data.b, sizeof (gev.data.b), message);
+    g_snprintf (gev.data.b, sizeof (gev.data.b), message, "%s");
 
     if (plugin_check_is_running (win, &id))
         gdk_event_send_client_message ((GdkEvent *)&gev, (GdkNativeWindow)id);