diff --git a/src/Orchard.Tests/Models/PartDriverHandlerTests.cs b/src/Orchard.Tests/Models/PartDriverHandlerTests.cs
index 007d367af..4247887d3 100644
--- a/src/Orchard.Tests/Models/PartDriverHandlerTests.cs
+++ b/src/Orchard.Tests/Models/PartDriverHandlerTests.cs
@@ -58,7 +58,7 @@ namespace Orchard.Tests.Models {
             var item = new ContentItem();
             item.Weld(new StubPart { Foo = new[] { "a", "b", "c" } });
 
-            var ctx = new BuildDisplayModelContext(new ItemDisplayModel(item), null, null);
+            var ctx = new BuildDisplayModelContext(new ItemDisplayModel(item), "", "");
             Assert.That(ctx.DisplayModel.Displays.Count(), Is.EqualTo(0));
             contentHandler.BuildDisplayModel(ctx);
             Assert.That(ctx.DisplayModel.Displays.Count(), Is.EqualTo(1));
diff --git a/src/Orchard/Models/PartDriver.cs b/src/Orchard/Models/PartDriver.cs
index 5a47efe84..6c4612691 100644
--- a/src/Orchard/Models/PartDriver.cs
+++ b/src/Orchard/Models/PartDriver.cs
@@ -57,6 +57,11 @@ namespace Orchard.Models {
     }
 
     public abstract class AutomaticPartDriver<TPart> : PartDriver<TPart> where TPart : class, IContent {
+        protected override string Prefix {
+            get {
+                return (typeof (TPart).Name);
+            }
+        }
         protected override DriverResult Display(TPart part, string groupName, string displayType) {
             return PartialView(part);
         }