diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index df55fbb1c..90683ae26 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -8,3 +8,4 @@ Lisa Bylund
 Sebastian Allard
 Jozef Raschmann
 Tor-Björn Holmström
+Stephen Patches
\ No newline at end of file
diff --git a/Kentor.AuthServices.Tests/WebSSO/AuthServicesUrlsTests.cs b/Kentor.AuthServices.Tests/WebSSO/AuthServicesUrlsTests.cs
index 732053eda..79a961db7 100644
--- a/Kentor.AuthServices.Tests/WebSSO/AuthServicesUrlsTests.cs
+++ b/Kentor.AuthServices.Tests/WebSSO/AuthServicesUrlsTests.cs
@@ -38,7 +38,7 @@ public void AuthServicesUrls_Ctor_NullCheckApplicationUrl()
         [TestMethod]
         public void AuthServicesUrls_Ctor_NullCheckModulePath()
         {
-            Action a = () => new AuthServicesUrls(new Uri("http://localhost"), (string)null);
+            Action a = () => new AuthServicesUrls(new Uri("http://localhost"), modulePath: null);
 
             a.ShouldThrow<ArgumentNullException>("modulePath");
         }
@@ -103,7 +103,7 @@ public void AuthServicesUrls_Ctor_AllowsNullAcs()
         [TestMethod]
         public void AuthServicesUrls_Ctor_NullCheckSignin()
         {
-            Action a = () => new AuthServicesUrls(new Uri("http://localhost/signin"), (Uri)null);
+            Action a = () => new AuthServicesUrls(new Uri("http://localhost/signin"), signInUrl: null);
 
             a.ShouldThrow<ArgumentNullException>("signInUrl");
         }
diff --git a/Kentor.AuthServices/WebSSO/AuthServicesUrls.cs b/Kentor.AuthServices/WebSSO/AuthServicesUrls.cs
index eda767368..9bd00cb8d 100644
--- a/Kentor.AuthServices/WebSSO/AuthServicesUrls.cs
+++ b/Kentor.AuthServices/WebSSO/AuthServicesUrls.cs
@@ -39,7 +39,8 @@ public AuthServicesUrls(HttpRequestData request, ISPOptions spOptions)
         /// </summary>
         /// <param name="applicationUrl">The full Url to the root of the application.</param>
         /// <param name="modulePath">Path of module, starting with / and ending without.</param>
-        [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Design", "CA1057:StringUriOverloadsCallSystemUriOverloads" )]
+        [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Design", "CA1057:StringUriOverloadsCallSystemUriOverloads"
+            , Justification = "Incorrect warning. modulePath isn't a string representation of a Uri" )]
         public AuthServicesUrls(Uri applicationUrl, string modulePath)
         {
             if (applicationUrl == null)