1 files changed, 1 insertions, 2 deletions
diff --git a/src/mscorlib/src/System/ArgumentException.cs b/src/mscorlib/src/System/ArgumentException.cs
index 8edb7e4279..f37b7690a8 100644
--- a/src/mscorlib/src/System/ArgumentException.cs
+++ b/src/mscorlib/src/System/ArgumentException.cs
@@ -82,10 +82,9 @@ namespace System {
             get { return m_paramName; }
         }
     
-        [System.Security.SecurityCritical]  // auto-generated_required
         public override void GetObjectData(SerializationInfo info, StreamingContext context) {
             if (info==null) {
-                throw new ArgumentNullException("info");
+                throw new ArgumentNullException(nameof(info));
             }
             Contract.EndContractBlock();
             base.GetObjectData(info, context);