diff --git a/src/OrchardCore/OrchardCore.Workflows.Abstractions/Helpers/ServiceCollectionExtensions.cs b/src/OrchardCore/OrchardCore.Workflows.Abstractions/Helpers/ServiceCollectionExtensions.cs
index 0f3dd65f49b..e13f7ec4baf 100644
--- a/src/OrchardCore/OrchardCore.Workflows.Abstractions/Helpers/ServiceCollectionExtensions.cs
+++ b/src/OrchardCore/OrchardCore.Workflows.Abstractions/Helpers/ServiceCollectionExtensions.cs
@@ -7,8 +7,10 @@ namespace OrchardCore.Workflows.Helpers;
 
 public static class ServiceCollectionExtensions
 {
-    public static void AddActivity<TActivity, TDriver>(this IServiceCollection services) where TActivity : class, IActivity where TDriver : class, IDisplayDriver<IActivity>
+    public static IServiceCollection AddActivity<TActivity, TDriver>(this IServiceCollection services) where TActivity : class, IActivity where TDriver : class, IDisplayDriver<IActivity>
     {
         services.Configure<WorkflowOptions>(options => options.RegisterActivity<TActivity, TDriver>());
+
+        return services;
     }
 }