1 files changed, 2 insertions, 0 deletions
diff --git a/py/objint_longlong.c b/py/objint_longlong.c
index 1c0758836..ee499e026 100644
--- a/py/objint_longlong.c
+++ b/py/objint_longlong.c
@@ -119,6 +119,8 @@ mp_obj_t mp_obj_int_unary_op(mp_unary_op_t op, mp_obj_t o_in) {
             self->val = -self->val;
             return MP_OBJ_FROM_PTR(self);
         }
+        case MP_UNARY_OP_INT_MAYBE:
+            return o_in;
         default:
             return MP_OBJ_NULL;      // op not supported
     }