diff --git a/Config/ConfigUtils.vb b/Config/ConfigUtils.vb
index 4573394d..9e2c91b0 100644
--- a/Config/ConfigUtils.vb
+++ b/Config/ConfigUtils.vb
@@ -3,8 +3,8 @@ Imports DigitalData.Modules.Base
 Imports DigitalData.Modules.Logging
 
 Public Class ConfigUtils
-    Private _Logger As Logger
-    Private _File As FilesystemEx
+    Private ReadOnly _Logger As Logger
+    Private ReadOnly _File As FilesystemEx
 
     Private Const MIGRATE_DIRECTORY As String = "Migrate"