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-rw-r--r--shared-bindings/microcontroller/Pin.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/shared-bindings/microcontroller/Pin.c b/shared-bindings/microcontroller/Pin.c
index ca717fe23..fd5285192 100644
--- a/shared-bindings/microcontroller/Pin.c
+++ b/shared-bindings/microcontroller/Pin.c
@@ -74,7 +74,7 @@ const mp_obj_type_t mcu_pin_type = {
void assert_pin(mp_obj_t obj, bool none_ok) {
if ((obj != mp_const_none || !none_ok) && !MP_OBJ_IS_TYPE(obj, &mcu_pin_type)) {
- nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "Expected a Pin"));
+ nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "Expected a %q", mcu_pin_type.name));
}
}