diff --git a/src/Middleware/RequestThrottling/sample/RequestThrottlingSample.csproj b/src/Middleware/RequestThrottling/sample/RequestThrottlingSample.csproj
index fd9214e35a..aba86dfadf 100644
--- a/src/Middleware/RequestThrottling/sample/RequestThrottlingSample.csproj
+++ b/src/Middleware/RequestThrottling/sample/RequestThrottlingSample.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
     <TargetFramework>netcoreapp3.0</TargetFramework>
@@ -7,6 +7,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.AspNetCore.Server.Kestrel" />
     <Reference Include="Microsoft.Extensions.Logging.Console" />
+    <Reference Include="Microsoft.AspNetCore.HttpsPolicy" />
     <Reference Include="Microsoft.AspNetCore.RequestThrottling" />
   </ItemGroup>