diff --git a/app/helpers/tree_helper.rb b/app/helpers/tree_helper.rb
index a8491dfe3b..af633f6fd0 100644
--- a/app/helpers/tree_helper.rb
+++ b/app/helpers/tree_helper.rb
@@ -48,7 +48,7 @@ module TreeHelper
   end
 
   def plain_text_readme? filename
-    filename == 'README'
+    filename =~ /^README(.txt)?$/i
   end
 
   # Simple shortcut to File.join