diff --git a/CSF.Extensions.WebDriver/ServiceCollectionExtensions.cs b/CSF.Extensions.WebDriver/ServiceCollectionExtensions.cs
index c039bda..91b672e 100644
--- a/CSF.Extensions.WebDriver/ServiceCollectionExtensions.cs
+++ b/CSF.Extensions.WebDriver/ServiceCollectionExtensions.cs
@@ -150,7 +150,7 @@ static void AddWebDriverFactory(this IServiceCollection services,
         public static IServiceCollection AddWebDriverFactoryWithoutOptionsPattern(this IServiceCollection services)
         {
             services.AddSingleton<IGetsWebDriverAndOptionsTypes, WebDriverTypesProvider>();
-            services.AddSingleton<IProxyGenerator, ProxyGenerator>();
+            services.AddSingleton<IProxyGenerator>(new ProxyGenerator());
 
             services.AddTransient<IGetsWebDriverWithDeterministicOptionsTypes, SeleniumDriverAndOptionsScanner>();
             services.AddTransient(s =>