diff --git a/33128/r17/TS33128Payloads.asn b/33128/r17/TS33128Payloads.asn
index 701f84cacecd06be7a06dbf89cf183f10862d47c..50d6654e1ce2c7debd1b097d7d5439c87d492cf4 100644
--- a/33128/r17/TS33128Payloads.asn
+++ b/33128/r17/TS33128Payloads.asn
@@ -4391,8 +4391,10 @@ SMSOverNASIndicator ::= ENUMERATED
 
 SNSSAI ::= SEQUENCE
 {
-    sliceServiceType    [1] INTEGER (0..255),
-    sliceDifferentiator [2] OCTET STRING (SIZE(3)) OPTIONAL
+    sliceServiceType               [1] INTEGER (0..255),
+    sliceDifferentiator            [2] OCTET STRING (SIZE(3)) OPTIONAL,
+    mappedHPLMNSliceServiceType    [3] INTEGER (0..255) OPTIONAL,
+    mappedHPLMNSliceDifferentiator [4] OCTET STRING (SIZE(3)) OPTIONAL
 }
 
 SubscriberIdentifier ::= CHOICE