diff --git a/src/Mvc/Extensions.ApiDescription.Client/src/Microsoft.Extensions.ApiDescription.Client.csproj b/src/Mvc/Extensions.ApiDescription.Client/src/Microsoft.Extensions.ApiDescription.Client.csproj
index c7eb528154..07b8cc5dd5 100644
--- a/src/Mvc/Extensions.ApiDescription.Client/src/Microsoft.Extensions.ApiDescription.Client.csproj
+++ b/src/Mvc/Extensions.ApiDescription.Client/src/Microsoft.Extensions.ApiDescription.Client.csproj
@@ -11,6 +11,7 @@
     <IsShippingPackage>true</IsShippingPackage>
     <VersionPrefix>$(ExperimentalVersionPrefix)</VersionPrefix>
     <TargetFrameworks>netstandard2.0;net461</TargetFrameworks>
+    <DevelopmentDependency>true</DevelopmentDependency>
     <HasReferenceAssembly>false</HasReferenceAssembly>
   </PropertyGroup>
 
diff --git a/src/Mvc/Extensions.ApiDescription.Server/src/Microsoft.Extensions.ApiDescription.Server.csproj b/src/Mvc/Extensions.ApiDescription.Server/src/Microsoft.Extensions.ApiDescription.Server.csproj
index df891977dd..10e642df50 100644
--- a/src/Mvc/Extensions.ApiDescription.Server/src/Microsoft.Extensions.ApiDescription.Server.csproj
+++ b/src/Mvc/Extensions.ApiDescription.Server/src/Microsoft.Extensions.ApiDescription.Server.csproj
@@ -13,6 +13,7 @@
     <PackageTags>MSBuild;Swagger;Open API;code generation;Web API</PackageTags>
     <IsShippingPackage>true</IsShippingPackage>
     <PackageVersion>$(ExperimentalPackageVersion)</PackageVersion>
+    <DevelopmentDependency>true</DevelopmentDependency>
   </PropertyGroup>
 
   <ItemGroup>