1 files changed, 6 insertions, 2 deletions
diff --git a/src/host/hub.h b/src/host/hub.h
index 35d8ad629..0e3292274 100644
--- a/src/host/hub.h
+++ b/src/host/hub.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -163,7 +163,11 @@ typedef struct {
       uint16_t high_speed             : 1;
       uint16_t port_test_mode         : 1;
       uint16_t port_indicator_control : 1;
-      uint16_t : 0;
+#if CFG_TUSB_ALT_BIT_PACKING_ALIGNMENT
+      uint16_t unused                 : 3;
+#else
+      uint16_t                        : 0;
+#endif /* CFG_TUSB_ALT_BIT_PACKING_ALIGNMENT */
     };
 
     uint16_t value;