diff --git a/nac3artiq/demo/min_artiq.py b/nac3artiq/demo/min_artiq.py
index 5057e0df..529eea3d 100644
--- a/nac3artiq/demo/min_artiq.py
+++ b/nac3artiq/demo/min_artiq.py
@@ -1,6 +1,5 @@
-from inspect import isclass, getfullargspec, getmodule
+from inspect import getfullargspec, getmodule
 from functools import wraps
-import sys
 from types import SimpleNamespace
 from numpy import int32, int64
 from typing import Generic, TypeVar