diff --git a/PoweredSoft.DynamicQuery.AspNetCore/ServiceCollectionExtensions.cs b/PoweredSoft.DynamicQuery.AspNetCore/ServiceCollectionExtensions.cs
index fe84214..09cc16a 100644
--- a/PoweredSoft.DynamicQuery.AspNetCore/ServiceCollectionExtensions.cs
+++ b/PoweredSoft.DynamicQuery.AspNetCore/ServiceCollectionExtensions.cs
@@ -8,7 +8,7 @@ namespace PoweredSoft.DynamicQuery.AspNetCore
 {
     public static class ServiceCollectionExtensions
     {
-        public static void AddDynamicQueryDefaultMappings(IServiceCollection services)
+        public static void AddDynamicQueryDefaultMappings(this IServiceCollection services)
         {
             services.AddTransient<ISort, Sort>();
             services.AddTransient<IAggregate, Aggregate>();