1 files changed, 1 insertions, 0 deletions

diff --git a/src/WixToolset.Core.WindowsInstaller/MsiBackend.cs b/src/WixToolset.Core.WindowsInstaller/MsiBackend.cs
index 716ea000..bf7b4579 100644
--- a/src/WixToolset.Core.WindowsInstaller/MsiBackend.cs
+++ b/src/WixToolset.Core.WindowsInstaller/MsiBackend.cs
@@ -8,6 +8,7 @@ namespace WixToolset.Core.WindowsInstaller
     using WixToolset.Data;
     using WixToolset.Data.Bind;
     using WixToolset.Extensibility;
+    using WixToolset.Extensibility.Services;
 
     internal class MsiBackend : IBackend
     {