diff --git a/ophyd_devices/sls_devices/sls_devices.py b/ophyd_devices/sls_devices/sls_devices.py
index d48a5e9..00dbffe 100644
--- a/ophyd_devices/sls_devices/sls_devices.py
+++ b/ophyd_devices/sls_devices/sls_devices.py
@@ -19,7 +19,6 @@ class SLSInfo(Device):
     # eh_t02_temperature_t0205_axis_18 = Cpt(
     #     EpicsSignalRO, "ILUUL-0200-EB105:TEMP", auto_monitor=True
     # )
-    operation = Cpt(EpicsSignalRO, "ACOAU-ACCU:OP-MODE", auto_monitor=True, string=True)
     injection_mode = Cpt(EpicsSignalRO, "ALIRF-GUN:INJ-MODE", auto_monitor=True, string=True)
     current_threshold = Cpt(EpicsSignalRO, "ALIRF-GUN:CUR-LOWLIM", auto_monitor=True)
     current_deadband = Cpt(EpicsSignalRO, "ALIRF-GUN:CUR-DBAND", auto_monitor=True)