Index: dh-link.c
===================================================================
--- dh-link.c	(revision 973)
+++ dh-link.c	(working copy)
@@ -20,10 +20,21 @@
  */
 
 #include <config.h>
-#include "string.h"
+#include <string.h>
+#include <glib-object.h>
 #include "dh-link.h"
 
-static void link_free (DhLink *link);
+GType
+dh_link_get_type (void)
+{
+  static GType type = 0;
+  if (G_UNLIKELY (type == 0)) {
+    type = g_boxed_type_register_static ("DhLink",
+                                         (GBoxedCopyFunc)dh_link_ref,
+                                         (GBoxedFreeFunc)dh_link_unref);
+  }
+  return type;
+}
 
 static void 
 link_free (DhLink *link)
Index: dh-link.h
===================================================================
--- dh-link.h	(revision 973)
+++ dh-link.h	(working copy)
@@ -23,6 +23,7 @@
 #define __DH_LINK_H__ 
 
 #include <glib.h>
+#include <glib-object.h>
 
 typedef struct _DhLink   DhLink;
 
@@ -49,6 +50,10 @@
 	guint        ref_count;
 };
 
+#define DH_TYPE_LINK dh_link_get_type ()
+
+GType dh_link_get_type (void);
+
 DhLink * dh_link_new               (DhLinkType     type,
 				    const gchar   *name,
 				    const gchar   *book,