--- xfce4-mixer-4.6.0.orig/panel-plugin/xfce-mixer-plugin.c
+++ xfce4-mixer-4.6.0/panel-plugin/xfce-mixer-plugin.c
@@ -86,8 +86,8 @@
 /* Function prototypes */
 static void             xfce_mixer_plugin_construct         (XfcePanelPlugin  *plugin);
 static XfceMixerPlugin *xfce_mixer_plugin_new               (XfcePanelPlugin  *plugin);
-static void             xfce_mixer_plugin_free              (XfcePanelPlugin  *plugin,
-                                                             XfceMixerPlugin  *mixer_plugin);
+static void             xfce_mixer_plugin_free              (XfceMixerPlugin  *mixer_plugin,
+                                                             XfcePanelPlugin  *plugin);
 static gboolean         xfce_mixer_plugin_size_changed      (XfceMixerPlugin  *mixer_plugin,
                                                              gint              size);
 static void             xfce_mixer_plugin_volume_changed    (XfceMixerPlugin  *mixer_plugin,
@@ -167,8 +167,8 @@
 
 
 static void
-xfce_mixer_plugin_free (XfcePanelPlugin *plugin,
-                        XfceMixerPlugin *mixer_plugin)
+xfce_mixer_plugin_free (XfceMixerPlugin *mixer_plugin,
+                        XfcePanelPlugin *plugin)
 {
   /* Free card and track names */
   g_free (mixer_plugin->command);