diff --git a/MatterControl.csproj b/MatterControl.csproj
index ad0289bea..63fd2d869 100644
--- a/MatterControl.csproj
+++ b/MatterControl.csproj
@@ -282,6 +282,10 @@
       <Project>{D3ABF72C-64C2-4E51-A119-E077210FA990}</Project>
       <Name>SerialPortCommunication</Name>
     </ProjectReference>
+    <ProjectReference Include="..\agg-sharp\WindowsFileDialogs\WindowsFileDialogs.csproj">
+      <Project>{A526DC5D-65F3-461B-805F-D3AC9665F5C9}</Project>
+      <Name>WindowsFileDialogs</Name>
+    </ProjectReference>
     <ProjectReference Include="Community.CsharpSqlite\Community.CsharpSqlite.csproj">
       <Project>{F1653F20-D47D-4F29-8C55-3C835542AF5F}</Project>
       <Name>Community.CsharpSqlite</Name>