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-rw-r--r--ports/nrf/boards/microbit/modules/modmicrobit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ports/nrf/boards/microbit/modules/modmicrobit.c b/ports/nrf/boards/microbit/modules/modmicrobit.c
index 3ab688c5b..8fa1fd8f2 100644
--- a/ports/nrf/boards/microbit/modules/modmicrobit.c
+++ b/ports/nrf/boards/microbit/modules/modmicrobit.c
@@ -43,7 +43,7 @@ STATIC mp_obj_t microbit_reset_(void) {
MP_DEFINE_CONST_FUN_OBJ_0(microbit_reset_obj, microbit_reset_);
STATIC mp_obj_t microbit_sleep(mp_obj_t ms_in) {
- mp_int_t ms;
+ mp_int_t ms = 0;
if (mp_obj_is_integer(ms_in)) {
ms = mp_obj_get_int(ms_in);
#if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT