1 files changed, 1 insertions, 1 deletions

diff --git a/src/WixToolset.Extensibility/BasePreprocessorExtension.cs b/src/WixToolset.Extensibility/BasePreprocessorExtension.cs
index b7d29095..cfacf97a 100644
--- a/src/WixToolset.Extensibility/BasePreprocessorExtension.cs
+++ b/src/WixToolset.Extensibility/BasePreprocessorExtension.cs
@@ -85,7 +85,7 @@ namespace WixToolset.Extensibility
         /// <summary>
         /// Called at the end of the preprocessing of a source file.
         /// </summary>
-        public virtual void PostPreprocess(XDocument document)
+        public virtual void PostPreprocess(IPreprocessResult result)
         {
         }
     }