1 files changed, 5 insertions, 5 deletions
diff --git a/crypto/src/pkcs/PrivateKeyInfoFactory.cs b/crypto/src/pkcs/PrivateKeyInfoFactory.cs
index 1baf2dd9f..d56831f35 100644
--- a/crypto/src/pkcs/PrivateKeyInfoFactory.cs
+++ b/crypto/src/pkcs/PrivateKeyInfoFactory.cs
@@ -164,16 +164,16 @@ namespace Org.BouncyCastle.Pkcs
                 else
                 {
                     X962Parameters x962;
-                    if (dp is ECNamedDomainParameters _dp)
-                    {
-                        x962 = new X962Parameters(_dp.Name);  
-                    }
-                    else
+                    if (priv.PublicKeyParamSet == null)
                     {
                         X9ECParameters ecP = new X9ECParameters(dp.Curve, new X9ECPoint(dp.G, false), dp.N, dp.H,
                             dp.GetSeed());
                         x962 = new X962Parameters(ecP);
                     }
+                    else
+                    {
+                        x962 = new X962Parameters(priv.PublicKeyParamSet);
+                    }
 
                     ec = new ECPrivateKeyStructure(orderBitLength, priv.D, publicKey, x962);