diff --git a/sflphone-gtk/src/dbus.h b/sflphone-gtk/src/dbus.h
index 137f3a256d79f62076c5bc032f1ef5d1890c2e2f..334219ee95141d54390db06ca5fd2c426e2d4ddb 100644
--- a/sflphone-gtk/src/dbus.h
+++ b/sflphone-gtk/src/dbus.h
@@ -75,6 +75,7 @@ int dbus_get_audio_device_index(const gchar* name);
 gchar* dbus_get_current_audio_output_plugin();
 int dbus_is_iax2_enabled( void );
 int dbus_is_ringtone_enabled( void );
+void dbus_ringtone_enabled( void );
 gchar* dbus_get_ringtone_choice( void );
 void dbus_set_ringtone_choice( const gchar* tone );