diff --git a/webservice/update_config.py b/webservice/update_config.py
index 002d8f77ef5fcde0774ce36d846fed71cf12152e..84b6252efecb42883ee920921a125bd79a10f4a0 100755
--- a/webservice/update_config.py
+++ b/webservice/update_config.py
@@ -33,6 +33,7 @@ AGIPD_CONFIGURATIONS = {
         'use-super-selection': {'type': str},
         'round-photons': {'type': bool},
         'rounding-threshold': {'type': float},
+        'photon-energy': {'type': float},
         'use-xgm-device': {'type': str},
         'recast-image-data': {'type': str},
         'compress-fields': {'type': list},