diff --git a/inventory/group_vars/copr-back b/inventory/group_vars/copr-back
index 7f13a5e132..d34c297e1d 100644
--- a/inventory/group_vars/copr-back
+++ b/inventory/group_vars/copr-back
@@ -2,6 +2,6 @@
 _lighttpd_conf_src: "lighttpd/lighttpd.conf"
 _copr_be_conf: "copr-be.conf"
 
-do_sign: "false"
+do_sign: "true"
 
 spawn_in_advance: "true"