diff --git a/VCEntities/VCEntities/util/VCEntitiesConstants.swift b/VCEntities/VCEntities/util/VCEntitiesConstants.swift
index b513c53..8df50c0 100644
--- a/VCEntities/VCEntities/util/VCEntitiesConstants.swift
+++ b/VCEntities/VCEntities/util/VCEntitiesConstants.swift
@@ -23,7 +23,7 @@ public struct VCEntitiesConstants {
     // OIDC Protocol
     public static let ALGORITHM_SUPPORTED_IN_VP = "ES256K"
     public static let CREDENTIAL_FORMAT_SUPPORTED = "jwt"
-    public static let DID_METHODS_SUPPORTED = "ion"
+    public static let DID_METHODS_SUPPORTED = "did:ion:"
     public static let RESPONSE_TYPE = "id_token"
     public static let RESPONSE_MODE = "post"
     public static let SCOPE = "openid"
diff --git a/VCEntities/VCEntities/validators/PresentationRequestValidator.swift b/VCEntities/VCEntities/validators/PresentationRequestValidator.swift
index c302dad..3ceb824 100644
--- a/VCEntities/VCEntities/validators/PresentationRequestValidator.swift
+++ b/VCEntities/VCEntities/validators/PresentationRequestValidator.swift
@@ -80,7 +80,7 @@ public struct PresentationRequestValidator: RequestValidating {
             throw PresentationRequestValidatorError.subjectIdentifierTypeNotSupported
         }
         
-        if let isAlgorithmSupportedInVp =         registration.vpFormats?.jwtVP?.algorithms?.contains(VCEntitiesConstants.ALGORITHM_SUPPORTED_IN_VP),
+        if let isAlgorithmSupportedInVp = registration.vpFormats?.jwtVP?.algorithms?.contains(VCEntitiesConstants.ALGORITHM_SUPPORTED_IN_VP),
            !isAlgorithmSupportedInVp {
             throw PresentationRequestValidatorError.signingAlgorithmNotSupported
         }