diff --git a/env.sh b/env.sh
index 3765daff522a674b86dc39261d41ae5f60712e32..b7b0571ca7f80abbcbc80f90c138cfda78ed4995 100644
--- a/env.sh
+++ b/env.sh
@@ -2,7 +2,6 @@ export IOCNAME="TS2-010RFC:Ctrl-IOC-002"
 export IOCDIR="TS2-010RFC_Ctrl-IOC-002"
 export AS_TOP="/opt/nonvolatile"
 export IOCNAME_SLUG="TS2-010RFC_Ctrl-IOC-002"
-export SIS8300LLRF_VER=dev_ts2
 
 export LLRF_PREFIX="TS2-010RFC:RFS-LLRF-102"
 export LLRF_DIGRTM_PREFIX="TS2-010RFC"
diff --git a/st.cmd b/st.cmd
index fdd8b050095eafca0487bde41edb97d1c3aa705e..451f0e186af745265a8838705024f8d5b669876d 100644
--- a/st.cmd
+++ b/st.cmd
@@ -10,7 +10,7 @@ epicsEnvSet("F-SYSTEM" "$(F_SYSTEM)")
 iocshLoad("$(essioc_DIR)/common_config.iocsh")
 
 # Load LLRF
-require llrfsystem, dev_ts2
+require llrfsystem
 
 epicsEnvSet("RFENDPV", "$(LLRF_DIGRTM_PREFIX):$(LLRF_DIG_R_1):PosRFEnd")
 iocshLoad("$(llrfsystem_DIR)/ts2-sec.iocsh", "P=$(LLRF_PREFIX):, R=, PD=$(LLRF_DIGRTM_PREFIX):, RD=$(LLRF_DIG_R_1):, PD1=$(LLRF_DIGRTM_PREFIX):, RD1=$(LLRF_DIG_R_1):, RR=$(LLRF_RFM_R_1):")