diff --git a/site.conf b/site.conf
index 77fd49e13646d43d78a7b908922ee9d6f543193d..bf3ad115a92cb709fb3b38d1308d1a417baca3a6 100644
--- a/site.conf
+++ b/site.conf
@@ -74,6 +74,7 @@
 	enabled = true,
         mtu = 1340,
         fastd = {
+            mtu = 1340,
             configurable = true,
             methods = {'salsa2012+umac'},
             groups = {