diff --git a/src/Umbraco.Web/Composing/Composers/ControllersComposer.cs b/src/Umbraco.Web/Composing/Composers/ControllersComposer.cs
index abc25dae49..8c9a78347c 100644
--- a/src/Umbraco.Web/Composing/Composers/ControllersComposer.cs
+++ b/src/Umbraco.Web/Composing/Composers/ControllersComposer.cs
@@ -59,7 +59,11 @@ namespace Umbraco.Web.Composing.Composers
             composition.RegisterControllers(umbracoWebControllers);
 
             // scan and register every PluginController in everything (PluginController is IDiscoverable and IController)
-            var nonUmbracoWebPluginController = composition.TypeLoader.GetTypes<PluginController>().Where(x => x.Assembly != umbracoWebAssembly);
+            var nonUmbracoWebPluginController = composition.TypeLoader
+                .GetTypes<PluginController>().Where(x => x.Assembly != umbracoWebAssembly)
+                .Union(composition.TypeLoader
+                    .GetTypes<RenderMvcController>().Where(x => x.Assembly != umbracoWebAssembly)
+                );
             composition.RegisterControllers(nonUmbracoWebPluginController);
 
             // scan and register every IHttpController in Umbraco.Web