Minor
diff --git a/src/hb-open-type-private.hh b/src/hb-open-type-private.hh
index add6846..cab0e70 100644
--- a/src/hb-open-type-private.hh
+++ b/src/hb-open-type-private.hh
@@ -655,4 +655,4 @@
 };
 
 
-#endif /* HB_OPEN_TYPES_PRIVATE_HH */
+#endif /* HB_OPEN_TYPE_PRIVATE_HH */