diff --git a/roles/copr/backend/tasks/main.yml b/roles/copr/backend/tasks/main.yml
index 427e348903..add5f9cb89 100644
--- a/roles/copr/backend/tasks/main.yml
+++ b/roles/copr/backend/tasks/main.yml
@@ -128,5 +128,5 @@
   copy: src="delete-forgotten-instances.cron" dest=/etc/cron.daily/delete-forgotten-instances owner=root group=root mode=755
 
 - name: add  sign machine address into the  sign.conf
-  lineinfile: dest="/etc/sign.conf" regexp="^server" line="server: {{ signer_host }}"
+  lineinfile: "dest=/etc/sign.conf regexp='^server' line='server: {{ signer_host }}'"