#define GTK_TYPE_VOLUME_BUTTON (gtk_volume_button_get_type ())
#define GTK_VOLUME_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_VOLUME_BUTTON, GtkVolumeButton))
-#define GTK_VOLUME_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_VOLUME_BUTTON, GtkVolumeeButtonClass))
+#define GTK_VOLUME_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_VOLUME_BUTTON, GtkVolumeButtonClass))
#define GTK_IS_VOLUME_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_VOLUME_BUTTON))
#define GTK_IS_VOLUME_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_VOLUME_BUTTON))
#define GTK_VOLUME_BUTTON_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_VOLUME_BUTTON, GtkVolumeButtonClass))