1 files changed, 1 insertions, 1 deletions

diff --git a/src/WixToolset.Core/PreprocessResult.cs b/src/WixToolset.Core/PreprocessResult.cs
index 8595d21d..7126f049 100644
--- a/src/WixToolset.Core/PreprocessResult.cs
+++ b/src/WixToolset.Core/PreprocessResult.cs
@@ -6,7 +6,7 @@ namespace WixToolset.Core
     using System.Xml.Linq;
     using WixToolset.Extensibility.Data;
 
-    public class PreprocessResult : IPreprocessResult
+    internal class PreprocessResult : IPreprocessResult
     {
         public XDocument Document { get; set; }