diff --git a/clutter/clutter/clutter-private.h b/clutter/clutter/clutter-private.h
index 594a73b86..8d85a61c0 100644
--- a/clutter/clutter/clutter-private.h
+++ b/clutter/clutter/clutter-private.h
@@ -245,12 +245,6 @@ PangoDirection _clutter_pango_unichar_direction (gunichar ch);
 PangoDirection _clutter_pango_find_base_dir     (const gchar *text,
                                                  gint         length);
 
-typedef struct _ClutterPlane
-{
-  graphene_vec3_t v0;
-  graphene_vec3_t n;
-} ClutterPlane;
-
 typedef enum _ClutterCullResult
 {
   CLUTTER_CULL_RESULT_UNKNOWN,