diff --git a/src/Ocelot/Middleware/Pipeline/IOcelotPipelineBuilder.cs b/src/Ocelot/Middleware/Pipeline/IOcelotPipelineBuilder.cs
index 9cb0db569..a10a23699 100644
--- a/src/Ocelot/Middleware/Pipeline/IOcelotPipelineBuilder.cs
+++ b/src/Ocelot/Middleware/Pipeline/IOcelotPipelineBuilder.cs
@@ -9,7 +9,7 @@ namespace Ocelot.Middleware.Pipeline
     public interface IOcelotPipelineBuilder
     {
         IServiceProvider ApplicationServices { get; }
-        OcelotPipelineBuilder Use(Func<OcelotRequestDelegate, OcelotRequestDelegate> middleware);
+        IOcelotPipelineBuilder Use(Func<OcelotRequestDelegate, OcelotRequestDelegate> middleware);
         OcelotRequestDelegate Build();
         IOcelotPipelineBuilder New();
     }
diff --git a/src/Ocelot/Middleware/Pipeline/OcelotPipelineBuilder.cs b/src/Ocelot/Middleware/Pipeline/OcelotPipelineBuilder.cs
index 5877ab621..58f711220 100644
--- a/src/Ocelot/Middleware/Pipeline/OcelotPipelineBuilder.cs
+++ b/src/Ocelot/Middleware/Pipeline/OcelotPipelineBuilder.cs
@@ -27,7 +27,7 @@ public OcelotPipelineBuilder(IOcelotPipelineBuilder builder)
 
         public IServiceProvider ApplicationServices { get; }
 
-        public OcelotPipelineBuilder Use(Func<OcelotRequestDelegate, OcelotRequestDelegate> middleware)
+        public IOcelotPipelineBuilder Use(Func<OcelotRequestDelegate, OcelotRequestDelegate> middleware)
         {
             _middlewares.Add(middleware);
             return this;