fixed argument null message

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/src/crypto/parameters/ParametersWithRandom.cs b/crypto/src/crypto/parameters/ParametersWithRandom.cs

index a05e77409..276dc2666 100644
--- a/crypto/src/crypto/parameters/ParametersWithRandom.cs
+++ b/crypto/src/crypto/parameters/ParametersWithRandom.cs
@@ -15,7 +15,7 @@ namespace Org.BouncyCastle.Crypto.Parameters
             SecureRandom		random)
         {
 			if (parameters == null)
-				throw new ArgumentNullException("random");
+				throw new ArgumentNullException("parameters");
 			if (random == null)
 				throw new ArgumentNullException("random");