diff --git a/hardware_components/abstract_hardware_components.py b/hardware_components/abstract_hardware_components.py
index 259133a1739d13d2225de61642d3e1fc1a57b96f..f873420af81e129f361a147f2a354286a6f887c0 100644
--- a/hardware_components/abstract_hardware_components.py
+++ b/hardware_components/abstract_hardware_components.py
@@ -50,7 +50,7 @@ class MuxAbstract(ABC):
         print(f'cabling: {cabling}')
         self.cabling = {}
         if cabling is not None:
-            for k, v in cabling:
+            for k, v in cabling.items():
                 print(f'{v}, {self.board_id}')  # TODO: delete me
                 if v[0]==self.board_id:
                     self.cabling.update({k: v[1]})