2 files changed, 5 insertions, 3 deletions
diff --git a/lib/Plugins.Essentials.ServiceStack/src/Construction/HttpServiceStackBuilder.cs b/lib/Plugins.Essentials.ServiceStack/src/Construction/HttpServiceStackBuilder.cs
index 3240330..34c68bf 100644
--- a/lib/Plugins.Essentials.ServiceStack/src/Construction/HttpServiceStackBuilder.cs
+++ b/lib/Plugins.Essentials.ServiceStack/src/Construction/HttpServiceStackBuilder.cs
@@ -112,7 +112,7 @@ namespace VNLib.Plugins.Essentials.ServiceStack.Construction
         ) => WithHttp((sgs) => {
 
             HttpTransportBinding[] vhBindings = getBindings(sgs)
-                .Select(s =>
+                .Select(static s =>
                 {
                     IEnumerable<IWebRoot> procs = s.Hosts.Select(static s => s.Processor);
                     return new HttpTransportBinding(s.Transport, procs);
diff --git a/lib/Plugins.Essentials.ServiceStack/src/Construction/ServiceBuilder.cs b/lib/Plugins.Essentials.ServiceStack/src/Construction/ServiceBuilder.cs
index 2464d9b..4817ba0 100644
--- a/lib/Plugins.Essentials.ServiceStack/src/Construction/ServiceBuilder.cs
+++ b/lib/Plugins.Essentials.ServiceStack/src/Construction/ServiceBuilder.cs
@@ -3,9 +3,9 @@
 * 
 * Library: VNLib
 * Package: VNLib.Plugins.Essentials.ServiceStack
-* File: HttpServiceStackBuilder.cs 
+* File: ServiceBuilder.cs 
 *
-* HttpServiceStackBuilder.cs is part of VNLib.Plugins.Essentials.ServiceStack which is part of the larger 
+* ServiceBuilder.cs is part of VNLib.Plugins.Essentials.ServiceStack which is part of the larger 
 * VNLib collection of libraries and utilities.
 *
 * VNLib.Plugins.Essentials.ServiceStack is free software: you can redistribute it and/or modify 
@@ -55,6 +55,8 @@ namespace VNLib.Plugins.Essentials.ServiceStack.Construction
         /// <returns>The current instance for chaining</returns>
         public ServiceBuilder AddHostCollection(Action<ICollection<IServiceHost>> host)
         {
+            ArgumentNullException.ThrowIfNull(host);
+
             _callbacks.Add(host);
             return this;
         }