diff --git a/src/hb-aat-map.hh b/src/hb-aat-map.hh
index 846cdc1a9206d94d6a2dcc7fd818ba1deb332610..d974bd3f002332da8dbfed3ed674376023b5ee5e 100644
--- a/src/hb-aat-map.hh
+++ b/src/hb-aat-map.hh
@@ -30,8 +30,6 @@
 #include "hb.hh"
 
 
-struct hb_ot_shape_plan_t;
-
 struct hb_aat_map_t
 {
   friend struct hb_aat_map_builder_t;