diff --git a/src/Umbraco.Tests/Runtimes/StandaloneTests.cs b/src/Umbraco.Tests/Runtimes/StandaloneTests.cs
index 440c279755..b2f1bf8461 100644
--- a/src/Umbraco.Tests/Runtimes/StandaloneTests.cs
+++ b/src/Umbraco.Tests/Runtimes/StandaloneTests.cs
@@ -68,7 +68,7 @@ namespace Umbraco.Tests.Runtimes
             // create the register and the composition
             var register = RegisterFactory.Create();
             var composition = new Composition(register, typeLoader, profilingLogger, runtimeState);
-            composition.RegisterEssentials(logger, profiler, profilingLogger, mainDom, appCaches, databaseFactory, typeLoader, runtimeState);
+            composition.RegisterEssentials(logger, profiler, profilingLogger, mainDom, appCaches, databaseFactory, typeLoader, runtimeState, new IOHelper());
 
             // create the core runtime and have it compose itself
             var coreRuntime = new CoreRuntime();