1 files changed, 2 insertions, 2 deletions
diff --git a/src/DotNetOpenAuth.OpenId.Provider/OpenId/Provider/PrivatePersonalIdentifierProviderBase.cs b/src/DotNetOpenAuth.OpenId.Provider/OpenId/Provider/PrivatePersonalIdentifierProviderBase.cs
index aaffa4c..2650e44 100644
--- a/src/DotNetOpenAuth.OpenId.Provider/OpenId/Provider/PrivatePersonalIdentifierProviderBase.cs
+++ b/src/DotNetOpenAuth.OpenId.Provider/OpenId/Provider/PrivatePersonalIdentifierProviderBase.cs
@@ -8,12 +8,12 @@ namespace DotNetOpenAuth.OpenId.Provider {
 	using System;
 	using System.Collections.Generic;
 	using System.Diagnostics.CodeAnalysis;
-	using System.Diagnostics.Contracts;
 	using System.Globalization;
 	using System.Linq;
 	using System.Security.Cryptography;
 	using System.Text;
 	using DotNetOpenAuth.Messaging;
+	using Validation;
 
 	/// <summary>
 	/// Provides standard PPID Identifiers to users to protect their identity from individual relying parties
@@ -102,7 +102,7 @@ namespace DotNetOpenAuth.OpenId.Provider {
 			}
 
 			set {
-				Requires.InRange(value > 0, "value");
+				Requires.Range(value > 0, "value");
 				this.newSaltLength = value;
 			}
 		}