1 files changed, 1 insertions, 1 deletions
diff --git a/src/mscorlib/src/System/Security/Permissions/StrongNamePublicKeyBlob.cs b/src/mscorlib/src/System/Security/Permissions/StrongNamePublicKeyBlob.cs
index e0aacaf80c..823eaba938 100644
--- a/src/mscorlib/src/System/Security/Permissions/StrongNamePublicKeyBlob.cs
+++ b/src/mscorlib/src/System/Security/Permissions/StrongNamePublicKeyBlob.cs
@@ -20,7 +20,7 @@ namespace System.Security.Permissions
         public StrongNamePublicKeyBlob( byte[] publicKey )
         {
             if (publicKey == null)
-                throw new ArgumentNullException( "PublicKey" );
+                throw new ArgumentNullException( nameof(PublicKey) );
             Contract.EndContractBlock();
         
             this.PublicKey = new byte[publicKey.Length];