diff --git a/geomagio/Controller.py b/geomagio/Controller.py
index 8dce1fd779ed3bd9497a8e051be6891465fff41d..199ab64e43503b8da174dfde88fa9c8ed05c6bc3 100644
--- a/geomagio/Controller.py
+++ b/geomagio/Controller.py
@@ -203,8 +203,8 @@ class Controller(object):
             output_observatory=options.output_observatory,
             starttime=options.starttime,
             endtime=options.endtime,
-            input_channels=options.input_channels,
-            output_channels=options.output_channels,
+            input_channels=options.inchannels,
+            output_channels=options.outchannels,
             no_trim=options.no_trim,
             realtime=options.realtime,
             rename_input_channel=options.rename_input_channel,