1 files changed, 3 insertions, 1 deletions
diff --git a/crypto/src/asn1/x509/IssuerSerial.cs b/crypto/src/asn1/x509/IssuerSerial.cs
index 6a24e7333..1e47e022b 100644
--- a/crypto/src/asn1/x509/IssuerSerial.cs
+++ b/crypto/src/asn1/x509/IssuerSerial.cs
@@ -1,5 +1,7 @@
 using System;
 
+using Org.BouncyCastle.Utilities;
+
 namespace Org.BouncyCastle.Asn1.X509
 {
     public class IssuerSerial
@@ -22,7 +24,7 @@ namespace Org.BouncyCastle.Asn1.X509
                 return new IssuerSerial((Asn1Sequence) obj);
             }
 
-			throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
+            throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj");
 		}
 
         public static IssuerSerial GetInstance(