Minor
diff --git a/src/hb-ot-shape.cc b/src/hb-ot-shape.cc
index e122ef4..5a1960c 100644
--- a/src/hb-ot-shape.cc
+++ b/src/hb-ot-shape.cc
@@ -37,6 +37,7 @@
 #include "hb-ot-shape-normalize-private.hh"
 
 #include "hb-ot-layout-private.hh"
+#include "hb-unicode-private.hh"
 #include "hb-set-private.hh"