diff --git a/rootfs/etc/confd/templates/server.yaml.tmpl b/rootfs/etc/confd/templates/server.yaml.tmpl
index a11aeb5..f51f30b 100644
--- a/rootfs/etc/confd/templates/server.yaml.tmpl
+++ b/rootfs/etc/confd/templates/server.yaml.tmpl
@@ -2171,7 +2171,7 @@ spam_checker:
 # Note that this option will only affect rooms created after it is set. It
 # will also not affect rooms created by other servers.
 #
-encryption_enabled_by_default_for_room_type: off
+encryption_enabled_by_default_for_room_type: "off"
 
 
 # Uncomment to allow non-server-admin users to create groups on this server