diff --git a/samples/IISSample/Startup.cs b/samples/IISSample/Startup.cs
index dbc57aab59..da617ed7ca 100644
--- a/samples/IISSample/Startup.cs
+++ b/samples/IISSample/Startup.cs
@@ -76,7 +76,7 @@ namespace IISSample
         {
             var host = new WebHostBuilder()
                 .UseDefaultHostingConfiguration(args)
-                .UseServer("Microsoft.AspNetCore.Server.Kestrel")
+                .UseKestrel()
                 .UseIIS()
                 .UseStartup<Startup>()
                 .Build();
@@ -85,3 +85,4 @@ namespace IISSample
         }
     }
 }
+
diff --git a/test/TestSites/Program.cs b/test/TestSites/Program.cs
index c6f331a3c0..88521ac633 100644
--- a/test/TestSites/Program.cs
+++ b/test/TestSites/Program.cs
@@ -13,10 +13,11 @@ namespace TestSites
                 .UseDefaultHostingConfiguration(args)
                 .UseIIS()
                 .UseStartup("TestSites")
-                .UseServer("Microsoft.AspNetCore.Server.Kestrel")
+                .UseKestrel()
                 .Build();
 
             host.Run();
         }
     }
 }
+