diff --git a/onyx/config/sample.root.xml b/onyx/config/sample.root.xml
index d94fd659..4d05ed20 100644
--- a/onyx/config/sample.root.xml
+++ b/onyx/config/sample.root.xml
@@ -2,6 +2,7 @@
 <configs active="1" root="/var/www/fic2014-server/htdocs/" cache="1">
   <config match="index.php">
     <var name="end_challenge">1386827772</var>
+    <var name="files_dir">/var/www/fic2014-server/files/</var>
     <var name="misc_dir">/var/www/fic2014-server/misc/</var>
     <var name="submission_dir">/var/www/fic2014-server/submission/</var>
     <var name="prefix_public">challenge-public</var>