diff --git a/src/toolbox_scs/constants.py b/src/toolbox_scs/constants.py
index 4411444a28bc2bf2f665999073ae5a0efbb320fa..cb42e28e1d04717f072b4a3da1448e975e032ae9 100644
--- a/src/toolbox_scs/constants.py
+++ b/src/toolbox_scs/constants.py
@@ -574,6 +574,9 @@ mnemonics = {
     "hRIXS_GTZ": ({'source': 'SCS_HRIXS_MOV/MOTOR/GTZ',
                             'key': 'actualPosition.value',
                             'dim': None},),
+    "hRIXS_RRY": ({'source': 'SCS_HRIXS_MOV/MOTOR/RRY',
+                            'key': 'actualPosition.value',
+                            'dim': None},),
 
     # XRD
     "XRD_DRY": ({'source': 'SCS_XRD_MOV/MOTOR/DRY',