diff --git a/rootfs/etc/confd/templates/config.yaml.tmpl b/rootfs/etc/confd/templates/config.yaml.tmpl
index ac0c7ad..7581fd0 100644
--- a/rootfs/etc/confd/templates/config.yaml.tmpl
+++ b/rootfs/etc/confd/templates/config.yaml.tmpl
@@ -43,7 +43,7 @@ appservice:
 bridge:
   # Localpart template of MXIDs for WhatsApp users.
   # {{.}} is replaced with the phone number of the WhatsApp user.
-  username_template: _whatsapp_{{"{{"}}.{{"}}"}}
+  username_template: whatsapp_{{"{{"}}.{{"}}"}}
   # Displayname template for WhatsApp users.
   # {{.Notify}} - nickname set by the WhatsApp user
   # {{.Jid}}    - phone number (international format)