diff --git a/src/Orchard.Specs/Bindings/WebAppHosting.cs b/src/Orchard.Specs/Bindings/WebAppHosting.cs
index adeef7fbf..2bebf0bcd 100644
--- a/src/Orchard.Specs/Bindings/WebAppHosting.cs
+++ b/src/Orchard.Specs/Bindings/WebAppHosting.cs
@@ -93,13 +93,14 @@ namespace Orchard.Specs.Bindings {
             _webHost = new WebHost(_orchardTemp);
             Host.Initialize(siteFolder, virtualDirectory ?? "/", _dynamicCompilationOption);
             var shuttle = new Shuttle();
-            Host.Execute(() => {
-                log4net.Config.BasicConfigurator.Configure(new CastleAppender());
-                HostingTraceListener.SetHook(msg => shuttle._sink.Receive(msg));
-            });
+            Host.Execute(() => Executor(shuttle));
             _messages = shuttle._sink;
         }
 
+        private static void Executor(Shuttle shuttle) {
+            HostingTraceListener.SetHook(msg => shuttle._sink.Receive(msg));
+        }
+
         private class CastleAppender : IAppender {
             public void Close() { }
             public string Name { get; set; }
diff --git a/src/Orchard.Specs/Hosting/SerializableDelegate.cs b/src/Orchard.Specs/Hosting/SerializableDelegate.cs
index 082acfd76..13162100e 100644
--- a/src/Orchard.Specs/Hosting/SerializableDelegate.cs
+++ b/src/Orchard.Specs/Hosting/SerializableDelegate.cs
@@ -68,7 +68,7 @@ namespace Orchard.Specs.Hosting {
                 TargetInstance = Activator.CreateInstance(classType);
 
                 foreach (FieldInfo field in classType.GetFields()) {
-                    if (typeof (Delegate).IsAssignableFrom(field.FieldType))
+                    if (typeof (TDelegate).IsAssignableFrom(field.FieldType))
                         //If the field is a delegate
                         field.SetValue(TargetInstance, ((SerializableDelegate<TDelegate>)info.GetValue(field.Name, typeof(SerializableDelegate<TDelegate>))).Delegate);
                     else if (!field.FieldType.IsSerializable)
@@ -86,8 +86,12 @@ namespace Orchard.Specs.Hosting {
 
                 foreach (FieldInfo field in targetType.GetFields()) {
                     //See corresponding comments above
-                    if (typeof (Delegate).IsAssignableFrom(field.FieldType))
-                        info.AddValue(field.Name, new SerializableDelegate<TDelegate>((TDelegate)field.GetValue(TargetInstance)));
+                    if (typeof (TDelegate).IsAssignableFrom(field.FieldType)) {
+                        var value = (TDelegate)field.GetValue(TargetInstance);
+                        if (value != null) {
+                            info.AddValue(field.Name, new SerializableDelegate<TDelegate>(value));
+                        }
+                    }
                     else if (!field.FieldType.IsSerializable)
                         info.AddValue(field.Name, new AnonymousClassWrapper(field.FieldType, field.GetValue(TargetInstance)));
                     else