diff --git a/src/AddIns/DisplayBindings/WpfDesign/WpfDesign.XamlDom/Project/WpfDesign.XamlDom.csproj b/src/AddIns/DisplayBindings/WpfDesign/WpfDesign.XamlDom/Project/WpfDesign.XamlDom.csproj
index 01ba32c1cd..dc41471707 100644
--- a/src/AddIns/DisplayBindings/WpfDesign/WpfDesign.XamlDom/Project/WpfDesign.XamlDom.csproj
+++ b/src/AddIns/DisplayBindings/WpfDesign/WpfDesign.XamlDom/Project/WpfDesign.XamlDom.csproj
@@ -76,6 +76,7 @@
     <Compile Include="MarkupExtensionPrinter.cs" />
     <Compile Include="NameScopeHelper.cs" />
     <Compile Include="PositionXmlDocument.cs" />
+    <Compile Include="TemplateHelper.cs" />
     <Compile Include="XamlConstants.cs" />
     <Compile Include="XamlDocument.cs" />
     <Compile Include="XamlLoadException.cs" />
@@ -91,4 +92,4 @@
     <Compile Include="XamlTypeFinder.cs" />
     <Compile Include="XamlTypeResolverProvider.cs" />
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file