diff --git a/src/toolbox_scs/constants.py b/src/toolbox_scs/constants.py
index 162ab04db356849c9a9ae4f1fa3f80190ccc1db6..b2b161617384dd075330a622eaa51c458d919e18 100644
--- a/src/toolbox_scs/constants.py
+++ b/src/toolbox_scs/constants.py
@@ -132,7 +132,7 @@ mnemonics = {
                       'key': 'value.value',
                       'dim': None},),
     "PES_RV": ({'source': 'SA3_XTD10_PES/MDL/DAQ_MPOD',
-                'key': 'u215.value',
+                'key': 'u213.value',
                 'dim': None},),
     "PES_N2": ({'source': 'SA3_XTD10_PES/DCTRL/V30300S_NITROGEN',
                 'key': 'interlock.AActionState.value',