diff --git a/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj b/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj
index e7f8c792..5d4fa598 100644
--- a/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj
+++ b/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj
@@ -10,6 +10,7 @@
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <WarningLevel>4</WarningLevel>
+    <PackageId>HandyControl</PackageId>
     <TargetFrameworkProfile />
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
@@ -207,4 +208,4 @@
     <Page Remove="..\..\Shared\HandyControl_Shared\Themes\Styles\MessageBox.xaml" />
     <Page Remove="..\..\Shared\HandyControl_Shared\Themes\Styles\Window.xaml" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>