diff --git a/gtk/gtkbuilderprivate.h b/gtk/gtkbuilderprivate.h
index a7fc500443..f58da231bc 100644
--- a/gtk/gtkbuilderprivate.h
+++ b/gtk/gtkbuilderprivate.h
@@ -42,6 +42,12 @@ typedef struct {
   CommonInfo *parent;
 } ObjectInfo;
 
+typedef struct {
+  TagInfo tag;
+  gchar *id;
+  GHashTable *objects;
+} MenuInfo;
+
 typedef struct {
   TagInfo tag;
   GSList *packing_properties;