diff --git a/gtk/gtkcolorchooserwidget.c b/gtk/gtkcolorchooserwidget.c
index 24598b370e..1e91cf1b08 100644
--- a/gtk/gtkcolorchooserwidget.c
+++ b/gtk/gtkcolorchooserwidget.c
@@ -61,6 +61,21 @@
  * GtkColorChooserWidget has a single CSS node with name colorchooser.
  */
 
+typedef struct _GtkColorChooserWidgetPrivate GtkColorChooserWidgetPrivate;
+typedef struct _GtkColorChooserWidgetClass   GtkColorChooserWidgetClass;
+
+struct _GtkColorChooserWidget
+{
+  GtkBox parent_instance;
+
+  GtkColorChooserWidgetPrivate *priv;
+};
+
+struct _GtkColorChooserWidgetClass
+{
+  GtkBoxClass parent_class;
+};
+
 struct _GtkColorChooserWidgetPrivate
 {
   GtkWidget *palette;
diff --git a/gtk/gtkcolorchooserwidget.h b/gtk/gtkcolorchooserwidget.h
index 60f461681d..eac86a7585 100644
--- a/gtk/gtkcolorchooserwidget.h
+++ b/gtk/gtkcolorchooserwidget.h
@@ -28,43 +28,9 @@ G_BEGIN_DECLS
 
 #define GTK_TYPE_COLOR_CHOOSER_WIDGET              (gtk_color_chooser_widget_get_type ())
 #define GTK_COLOR_CHOOSER_WIDGET(obj)              (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_COLOR_CHOOSER_WIDGET, GtkColorChooserWidget))
-#define GTK_COLOR_CHOOSER_WIDGET_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_COLOR_CHOOSER_WIDGET, GtkColorChooserWidgetClass))
 #define GTK_IS_COLOR_CHOOSER_WIDGET(obj)           (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_COLOR_CHOOSER_WIDGET))
-#define GTK_IS_COLOR_CHOOSER_WIDGET_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_COLOR_CHOOSER_WIDGET))
-#define GTK_COLOR_CHOOSER_WIDGET_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_COLOR_CHOOSER_WIDGET, GtkColorChooserWidgetClass))
 
 typedef struct _GtkColorChooserWidget        GtkColorChooserWidget;
-typedef struct _GtkColorChooserWidgetPrivate GtkColorChooserWidgetPrivate;
-typedef struct _GtkColorChooserWidgetClass   GtkColorChooserWidgetClass;
-
-struct _GtkColorChooserWidget
-{
-  GtkBox parent_instance;
-
-  /*< private >*/
-  GtkColorChooserWidgetPrivate *priv;
-};
-
-/**
- * GtkColorChooserWidgetClass:
- * @parent_class: The parent class.
- */
-struct _GtkColorChooserWidgetClass
-{
-  GtkBoxClass parent_class;
-
-  /*< private >*/
-
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
-  void (*_gtk_reserved5) (void);
-  void (*_gtk_reserved6) (void);
-  void (*_gtk_reserved7) (void);
-  void (*_gtk_reserved8) (void);
-};
 
 GDK_AVAILABLE_IN_ALL
 GType       gtk_color_chooser_widget_get_type (void) G_GNUC_CONST;