diff --git a/gtk/gtkcellrendererpixbuf.c b/gtk/gtkcellrendererpixbuf.c
index 17ec14018c..af2f94d2fe 100644
--- a/gtk/gtkcellrendererpixbuf.c
+++ b/gtk/gtkcellrendererpixbuf.c
@@ -86,6 +86,21 @@ enum {
   PROP_GICON
 };
 
+typedef struct _GtkCellRendererPixbufPrivate       GtkCellRendererPixbufPrivate;
+typedef struct _GtkCellRendererPixbufClass         GtkCellRendererPixbufClass;
+
+struct _GtkCellRendererPixbuf
+{
+  GtkCellRenderer parent;
+
+  /*< private >*/
+  GtkCellRendererPixbufPrivate *priv;
+};
+
+struct _GtkCellRendererPixbufClass
+{
+  GtkCellRendererClass parent_class;
+};
 
 struct _GtkCellRendererPixbufPrivate
 {
diff --git a/gtk/gtkcellrendererpixbuf.h b/gtk/gtkcellrendererpixbuf.h
index 83fadce375..1089cd749b 100644
--- a/gtk/gtkcellrendererpixbuf.h
+++ b/gtk/gtkcellrendererpixbuf.h
@@ -30,33 +30,9 @@ G_BEGIN_DECLS
 
 #define GTK_TYPE_CELL_RENDERER_PIXBUF			(gtk_cell_renderer_pixbuf_get_type ())
 #define GTK_CELL_RENDERER_PIXBUF(obj)			(G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CELL_RENDERER_PIXBUF, GtkCellRendererPixbuf))
-#define GTK_CELL_RENDERER_PIXBUF_CLASS(klass)		(G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CELL_RENDERER_PIXBUF, GtkCellRendererPixbufClass))
 #define GTK_IS_CELL_RENDERER_PIXBUF(obj)		(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CELL_RENDERER_PIXBUF))
-#define GTK_IS_CELL_RENDERER_PIXBUF_CLASS(klass)	(G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CELL_RENDERER_PIXBUF))
-#define GTK_CELL_RENDERER_PIXBUF_GET_CLASS(obj)         (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CELL_RENDERER_PIXBUF, GtkCellRendererPixbufClass))
 
 typedef struct _GtkCellRendererPixbuf              GtkCellRendererPixbuf;
-typedef struct _GtkCellRendererPixbufPrivate       GtkCellRendererPixbufPrivate;
-typedef struct _GtkCellRendererPixbufClass         GtkCellRendererPixbufClass;
-
-struct _GtkCellRendererPixbuf
-{
-  GtkCellRenderer parent;
-
-  /*< private >*/
-  GtkCellRendererPixbufPrivate *priv;
-};
-
-struct _GtkCellRendererPixbufClass
-{
-  GtkCellRendererClass parent_class;
-
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
-};
 
 GDK_AVAILABLE_IN_ALL
 GType            gtk_cell_renderer_pixbuf_get_type (void) G_GNUC_CONST;