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-rw-r--r--py/runtime.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/py/runtime.c b/py/runtime.c
index f7e0abdb4..1836f5d92 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -171,6 +171,10 @@ void mp_init(void) {
MP_STATE_VM(bluetooth) = MP_OBJ_NULL;
#endif
+ #if MICROPY_HW_ENABLE_USB_RUNTIME_DEVICE
+ MP_STATE_VM(usbd) = MP_OBJ_NULL;
+ #endif
+
#if MICROPY_PY_THREAD_GIL
mp_thread_mutex_init(&MP_STATE_VM(gil_mutex));
#endif