diff --git a/src/cal_tools/calcat_interface.py b/src/cal_tools/calcat_interface.py
index 4879a50013c0b5f9c3b6cc1cc7d4dd087eb9d6a8..ffcb71c9ada76e17008c3cbf52c0490bffccfb45 100644
--- a/src/cal_tools/calcat_interface.py
+++ b/src/cal_tools/calcat_interface.py
@@ -1056,7 +1056,6 @@ class DSSC_CalibrationData(CalibrationData):
         modules=None,
         client=None,
         event_at=None,
-        pdu_snapshot_at=None,
         module_naming="da",
     ):
         super().__init__(
@@ -1064,7 +1063,6 @@ class DSSC_CalibrationData(CalibrationData):
             modules,
             client,
             event_at,
-            pdu_snapshot_at,
             module_naming,
         )