diff --git a/frappy_psi/ccracks.py b/frappy_psi/ccracks.py
index 08c2da95..d16d5616 100644
--- a/frappy_psi/ccracks.py
+++ b/frappy_psi/ccracks.py
@@ -8,7 +8,7 @@ from frappy.errors import ConfigError
 class Rack:
     configbase = Path('/home/l_samenv/.config/frappy_instruments')
 
-    def __init__(self, modfactory, **kwds):
+    def __init__(self, modfactory):
         self.modfactory = modfactory
         instpath = self.configbase / os.environ['Instrument']
         sections = {}