diff --git a/roles/copr/frontend/tasks/main.yml b/roles/copr/frontend/tasks/main.yml
index 21d3b34734..8f97dcefe1 100644
--- a/roles/copr/frontend/tasks/main.yml
+++ b/roles/copr/frontend/tasks/main.yml
@@ -192,5 +192,5 @@
     group: "nagios"
     mode: 0750
   vars:
-    api_key: "{{ copr_uptimerobot_api_key_ro | default("not-configured") }}"
+    api_key: "{{ copr_uptimerobot_api_key_ro | default('not-configured') }}"
   tags: copr_cdn