diff --git a/src/toolbox_scs/constants.py b/src/toolbox_scs/constants.py
index 064ed851a6f1688e0f47a7546e8009b2efee97b9..6a266d0bbd883e58419f83d41d58a85d4a8a181b 100644
--- a/src/toolbox_scs/constants.py
+++ b/src/toolbox_scs/constants.py
@@ -62,7 +62,9 @@ mnemonics = {
     "nrj": ({'source': 'SA3_XTD10_MONO/MDL/PHOTON_ENERGY',
              'key': 'actualEnergy.value',
              'dim': None},),
-
+    "nrj_target": ({'source': 'SA3_XTD10_MONO/MDL/PHOTON_ENERGY',
+                    'key': 'targetEnergy.value',
+                    'dim': None},),
     "M2BEND": ({'source': 'SA3_XTD10_MIRR-2/MOTOR/BENDER',
                 'key': 'actualPosition.value',
                 'dim': None},),