1 files changed, 3 insertions, 1 deletions
diff --git a/crypto/src/asn1/DerBoolean.cs b/crypto/src/asn1/DerBoolean.cs
index 66791d16c..709f4ddce 100644
--- a/crypto/src/asn1/DerBoolean.cs
+++ b/crypto/src/asn1/DerBoolean.cs
@@ -1,5 +1,7 @@
 using System;
 
+using Org.BouncyCastle.Utilities;
+
 namespace Org.BouncyCastle.Asn1
 {
     public class DerBoolean
@@ -23,7 +25,7 @@ namespace Org.BouncyCastle.Asn1
                 return (DerBoolean) obj;
             }
 
-            throw new ArgumentException("illegal object in GetInstance: " + obj.GetType().Name);
+            throw new ArgumentException("illegal object in GetInstance: " + Platform.GetTypeName(obj));
         }
 
         /**