diff --git a/wmde-rp.conf b/wmde-rp.conf
index 1c4d920..37c63dc 100644
--- a/wmde-rp.conf
+++ b/wmde-rp.conf
@@ -3,6 +3,7 @@ NFSSERVER=nfsserver.gs.wikimedia.de
 NFSHOMES=/mnt/home
 
 PREFIX=/usr/local/bin/wmde
+SYNPRG=unison
 
 
 ADMIN_USERS="admin root" # never run roaming profiles  for this users