diff --git a/samples/HttpOverridesSample/Startup.cs b/samples/HttpOverridesSample/Startup.cs
index 9cacb60dc1..7e1af1eedc 100644
--- a/samples/HttpOverridesSample/Startup.cs
+++ b/samples/HttpOverridesSample/Startup.cs
@@ -34,6 +34,7 @@ namespace HttpOverridesSample
         {
             var host = new WebHostBuilder()
                 .UseDefaultConfiguration(args)
+                .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseIISPlatformHandlerUrl()
                 .UseStartup<Startup>()
                 .Build();
diff --git a/samples/HttpOverridesSample/hosting.json b/samples/HttpOverridesSample/hosting.json
deleted file mode 100644
index 6a93dbafa8..0000000000
--- a/samples/HttpOverridesSample/hosting.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "server": "Microsoft.AspNetCore.Server.Kestrel"
-}
diff --git a/samples/ResponseBufferingSample/Startup.cs b/samples/ResponseBufferingSample/Startup.cs
index 5679fe7566..1db4d55b9f 100644
--- a/samples/ResponseBufferingSample/Startup.cs
+++ b/samples/ResponseBufferingSample/Startup.cs
@@ -39,6 +39,7 @@ namespace ResponseBufferingSample
         {
             var host = new WebHostBuilder()
                 .UseDefaultConfiguration(args)
+                .UseServer("Microsoft.AspNetCore.Server.Kestrel")
                 .UseIISPlatformHandlerUrl()
                 .UseStartup<Startup>()
                 .Build();
diff --git a/samples/ResponseBufferingSample/hosting.json b/samples/ResponseBufferingSample/hosting.json
deleted file mode 100644
index 6a93dbafa8..0000000000
--- a/samples/ResponseBufferingSample/hosting.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "server": "Microsoft.AspNetCore.Server.Kestrel"
-}