diff --git a/Controll.py b/Controll.py
index 675f6f7..4c6b080 100644
--- a/Controll.py
+++ b/Controll.py
@@ -34,10 +34,10 @@ def main():
     for i, serial in enumerate(serials):
         ctrl = controllers[serial]
         win.add_list_item(
-            text=serial,
-            index=i,
-            on_start=make_on_start(ctrl),
-            on_stop=make_on_stop(ctrl),
+            serial,
+            i,
+            make_on_start(ctrl),
+            make_on_stop(ctrl),
         )
 
     # 4) Start