diff --git a/doc/preferred_content.mdwn b/doc/preferred_content.mdwn
index 1dbc4b60bd..b84e4151b8 100644
--- a/doc/preferred_content.mdwn
+++ b/doc/preferred_content.mdwn
@@ -66,7 +66,7 @@ below to get the full story.
   when you're done with them. Then you could configure your laptop to prefer
   to not retain those files, like this:
 
-	exclude=*/archive/*
+  	exclude=*/archive/*
 
 * `copies=number`