diff --git a/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/2.1/TodoApi.NSwag/Startup.cs b/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/2.1/TodoApi.NSwag/Startup.cs
index 846609ac4f..097449ae83 100644
--- a/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/2.1/TodoApi.NSwag/Startup.cs
+++ b/aspnetcore/tutorials/web-api-help-pages-using-swagger/samples/2.1/TodoApi.NSwag/Startup.cs
@@ -28,10 +28,13 @@ namespace TodoApi
 
             // Register the Swagger generator and the Swagger UI middlewares
             app.UseOpenApi();
-            app.UseSwaggerUi3();
+            if (app.Environment.IsDevelopment())
+            {
+                app.UseSwaggerUi3();
+            }
 
             app.UseMvc();
         }
         // </snippet_Configure>
     }
-}
\ No newline at end of file
+}