diff --git a/src/cal_tools/agipdlib.py b/src/cal_tools/agipdlib.py
index 1dcf12d645de3161c9c8ddd9570e0254899e398d..d699280e67726a0b79de00a791ca98bb0f55db44 100644
--- a/src/cal_tools/agipdlib.py
+++ b/src/cal_tools/agipdlib.py
@@ -793,6 +793,7 @@ class AgipdCorrections:
 
         agipd_base = self.h5_data_path.format(modno)
         karabo_id, _, channel = agipd_base.split('/')
+        channel = channel.partition(":")[0] + ":output"
         agipd_corr_source = f"{karabo_id}/CORR/{channel}"
 
         agipd_corr_channels = {