diff --git a/src/Altinn.App.Core/Extensions/ServiceCollectionExtensions.cs b/src/Altinn.App.Core/Extensions/ServiceCollectionExtensions.cs
index 52a69a582..99008af15 100644
--- a/src/Altinn.App.Core/Extensions/ServiceCollectionExtensions.cs
+++ b/src/Altinn.App.Core/Extensions/ServiceCollectionExtensions.cs
@@ -162,6 +162,7 @@ public static bool IsAdded(this IServiceCollection services, Type serviceType)
 
         private static void AddEventServices(IServiceCollection services)
         {
+            services.AddTransient<IEventHandler, SubscriptionValidationHandler>();
             services.AddTransient<IEventHandlerResolver, EventHandlerResolver>();
             services.TryAddSingleton<IEventSecretCodeProvider, KeyVaultEventSecretCodeProvider>();