diff --git a/ports/stm32/modmachine.c b/ports/stm32/modmachine.c
index 1869b984da..69fe8f4f54 100644
--- a/ports/stm32/modmachine.c
+++ b/ports/stm32/modmachine.c
@@ -387,7 +387,7 @@ MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_deepsleep_obj, 0, 1, machine_deepsle
 STATIC mp_obj_t machine_reset_cause(void) {
     return MP_OBJ_NEW_SMALL_INT(reset_cause);
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_cause_obj, machine_reset_cause);
+MP_DEFINE_CONST_FUN_OBJ_0(machine_reset_cause_obj, machine_reset_cause);
 
 #if MICROPY_PY_MACHINE
 
diff --git a/ports/stm32/modmachine.h b/ports/stm32/modmachine.h
index 409c552e6c..28d9c699d6 100644
--- a/ports/stm32/modmachine.h
+++ b/ports/stm32/modmachine.h
@@ -48,6 +48,7 @@ MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_freq_obj);
 MP_DECLARE_CONST_FUN_OBJ_0(machine_idle_obj);
 MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_lightsleep_obj);
 MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_deepsleep_obj);
+MP_DECLARE_CONST_FUN_OBJ_0(machine_reset_cause_obj);
 
 MP_DECLARE_CONST_FUN_OBJ_0(machine_disable_irq_obj);
 MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(machine_enable_irq_obj);