1 files changed, 1 insertions, 1 deletions

diff --git a/src/WixToolset.Extensibility/BaseCompilerExtension.cs b/src/WixToolset.Extensibility/BaseCompilerExtension.cs
index 5dfe5dcf..0f386e28 100644
--- a/src/WixToolset.Extensibility/BaseCompilerExtension.cs
+++ b/src/WixToolset.Extensibility/BaseCompilerExtension.cs
@@ -15,7 +15,7 @@ namespace WixToolset.Extensibility
         /// <summary>
         /// Messaging for use by the extension.
         /// </summary>
-        protected Messaging Messaging { get; private set; }
+        protected IMessaging Messaging { get; private set; }
 
         /// <summary>
         /// ParserHelper for use by the extension.