diff --git a/src/Owin.Loader/Owin.Loader.csproj b/src/Owin.Loader/Owin.Loader.csproj
index 52fa72b5..ffaf5a3f 100644
--- a/src/Owin.Loader/Owin.Loader.csproj
+++ b/src/Owin.Loader/Owin.Loader.csproj
@@ -4,6 +4,7 @@
     <RootNamespace>Owin.Loader</RootNamespace>
     <TargetFramework>$(DefaultNetFxTargetFramework)</TargetFramework>
 	<IsShipping>false</IsShipping>
+    <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Owin" Version="$(OwinVersion)" />
diff --git a/src/Tools/CertificateInstaller/CertInstaller/CertInstaller.csproj b/src/Tools/CertificateInstaller/CertInstaller/CertInstaller.csproj
index 9911e345..2ecb2adc 100644
--- a/src/Tools/CertificateInstaller/CertInstaller/CertInstaller.csproj
+++ b/src/Tools/CertificateInstaller/CertInstaller/CertInstaller.csproj
@@ -5,5 +5,6 @@
 		<TargetFramework>net4.5</TargetFramework>
 		<ApplicationManifest>app.manifest</ApplicationManifest>
 		<IsShipping>false</IsShipping>
+		<IsPackable>false</IsPackable>
 	</PropertyGroup>
 </Project>
\ No newline at end of file