diff --git a/pySim/esim/saip/oid.py b/pySim/esim/saip/oid.py
index 6828e81c..f201ffee 100644
--- a/pySim/esim/saip/oid.py
+++ b/pySim/esim/saip/oid.py
@@ -116,5 +116,5 @@ DF_5GS_v4 = eOID("2.13.4")
 DF_SAIP = eOID("2.14")
 DF_SNPN = eOID("2.15")
 DF_5GProSe = eOID("2.16")
-IoT_default = eOID("2.17")
-IoT_default = eOID("2.18")
+IoT_by_default = eOID("2.17")
+IoTopt_not_by_default = eOID("2.18")