diff --git a/src/Orchard.Core.Tests/Scheduling/ScheduledTaskExecutorTests.cs b/src/Orchard.Core.Tests/Scheduling/ScheduledTaskExecutorTests.cs
index c06a42cd8..2eb56b3e6 100644
--- a/src/Orchard.Core.Tests/Scheduling/ScheduledTaskExecutorTests.cs
+++ b/src/Orchard.Core.Tests/Scheduling/ScheduledTaskExecutorTests.cs
@@ -34,6 +34,7 @@ namespace Orchard.Core.Tests.Scheduling {
         public override void Register(ContainerBuilder builder) {
             _handler = new StubTaskHandler();
             builder.RegisterInstance(new Mock<IOrchardServices>().Object);
+            builder.RegisterInstance(new Mock<ITransactionManager>().Object);
             builder.RegisterType<DefaultContentManager>().As<IContentManager>();
             builder.RegisterType<DefaultContentManagerSession>().As<IContentManagerSession>();
             builder.RegisterType<DefaultShapeTableManager>().As<IShapeTableManager>();