diff --git a/102232-1/LI-PS-PDU.asn b/102232-1/LI-PS-PDU.asn
index f3b23292df3b57d4fce23a3f0ea8a975667248c8..6031ba8f0a9d042ee1e6b5aff3a28f0d4327f6c0 100644
--- a/102232-1/LI-PS-PDU.asn
+++ b/102232-1/LI-PS-PDU.asn
@@ -515,9 +515,12 @@ IntegrityCheck ::= SEQUENCE
         -- used to insert the appropriate ASN.1 DER or BER encoded structure for the
         -- DSS/DSA signature as described in IETF RFC 3279 [43], clause 2.2.2.
     ...,
-    hashAlgorithm               [4] HashAlgorithm OPTIONAL
+    hashAlgorithm               [4] HashAlgorithm OPTIONAL,
         -- Clarifies the hash function if checkType is hash(1).
         -- If used, it shall be present for each checkType hash(1).
+    signatureAlgorithm          [5] SignatureAlgorithm OPTIONAL
+        -- Clarifies the signature algorithm if checkType is signature(2).
+        -- If used, it shall be present for each checkType signature(2).
 }
 
 CheckType ::= ENUMERATED
@@ -547,6 +550,15 @@ HashAlgorithm ::= ENUMERATED
     ...
 }
 
+SignatureAlgorithm ::= ENUMERATED
+{
+    dSA(1),
+        -- Included for legacy/migration purposes only, not to be used for new implementations
+    eCDSA(2),
+    edDSA(3),
+    ...
+}
+
 Option ::= CHOICE
 {
     pDUAcknowledgement  [0] NULL,