diff --git a/webservice/config/webservice.yaml b/webservice/config/webservice.yaml
index 0e23f1ca8bb889d82b84e5b097d5a2efcb419bb1..66195a9a6282ec62992add2493a2e907bf8062f0 100644
--- a/webservice/config/webservice.yaml
+++ b/webservice/config/webservice.yaml
@@ -63,6 +63,18 @@ dark:
   reports-folder: /gpfs/exfel/d/cal/caldb_store/xfel/reports/{instrument}/{det_instance}/{action}
   commissioning-penalty: 1250
   job-penalty: 2
+  three-gain-detectors:
+    [
+      "LPD",
+      "AGIPD",
+      "JUNGFRAU",
+      "JF",
+      "JNGFR",
+      "JUNGF",
+      "GH2",
+      "G2",
+      "HIREX",
+    ]
   cmd: >-
     python -m xfel_calibrate.calibrate {detector} DARK
     --concurrency-par karabo_da
diff --git a/webservice/webservice.py b/webservice/webservice.py
index d1a6cafc934f4a6f0d4028abd3e8aa0fd649c6c7..2ce0f9d3eabb3de3de24fffcf479c9c67f2bcc89 100644
--- a/webservice/webservice.py
+++ b/webservice/webservice.py
@@ -1287,18 +1287,7 @@ class ActionsServer:
                 # Notebooks require one or three runs, depending on the
                 # detector type and operation mode.
                 triple = any(
-                    det in karabo_id for det in
-                    [
-                        "LPD",
-                        "AGIPD",
-                        "JUNGFRAU",
-                        "JF",
-                        "JNGFR",
-                        "JUNGF",
-                        "GH2",
-                        "G2",
-                        "HIREX"
-                    ])
+                    det in karabo_id for det in self.config['dark']['three-gain-detectors'])  # noqa
 
                 # This fails silently if the hardcoded strings above are
                 # ever changed (triple = False) but the underlying notebook