diff --git a/posix-configs/SITL/init/rcS_jmavsim_iris b/posix-configs/SITL/init/rcS_jmavsim_iris
index a893f0dc52..490f93bb51 100644
--- a/posix-configs/SITL/init/rcS_jmavsim_iris
+++ b/posix-configs/SITL/init/rcS_jmavsim_iris
@@ -9,10 +9,10 @@ param set MC_YAWRATE_P 0.35
 param set SYS_AUTOSTART 4010
 param set SYS_RESTART_TYPE 2
 dataman start
-param set CAL_GYRO0_ID 2293760
-param set CAL_ACC0_ID 1376256
-param set CAL_ACC1_ID 1310720
-param set CAL_MAG0_ID 196608
+param set CAL_GYRO0_ID -1105002488
+param set CAL_ACC0_ID -1105919992
+param set CAL_ACC1_ID -1105985528
+param set CAL_MAG0_ID -1107099640
 param set CAL_GYRO0_XOFF 0.01
 param set CAL_ACC0_XOFF 0.01
 param set CAL_ACC0_YOFF -0.01