1 files changed, 1 insertions, 0 deletions

diff --git a/src/wixext/UtilCompiler.cs b/src/wixext/UtilCompiler.cs
index 59b36d1c..3522d1fb 100644
--- a/src/wixext/UtilCompiler.cs
+++ b/src/wixext/UtilCompiler.cs
@@ -12,6 +12,7 @@ namespace WixToolset.Util
     using System.Xml.Linq;
     using WixToolset.Data;
     using WixToolset.Extensibility;
+    using WixToolset.Extensibility.Data;
 
     /// <summary>
     /// The compiler for the WiX Toolset Utility Extension.