diff --git a/src/tusb.c b/src/tusb.c
index e6f8055b7..3ab2004d2 100644
--- a/src/tusb.c
+++ b/src/tusb.c
@@ -41,7 +41,7 @@
 
 #define TUP_USBIP_CONTROLLER_NUM 2
 
-static tusb_role_t _rhport_role[TUP_USBIP_CONTROLLER_NUM] = { 0 };
+static tusb_role_t _rhport_role[TUP_USBIP_CONTROLLER_NUM] = { TUSB_ROLE_INVALID };
 
 //--------------------------------------------------------------------+
 // Public API