diff --git a/group_vars/prom/prometheus/common.yml b/group_vars/prom/prometheus/common.yml
index f00a693..af469a5 100644
--- a/group_vars/prom/prometheus/common.yml
+++ b/group_vars/prom/prometheus/common.yml
@@ -1,7 +1,7 @@
 ---
 prometheus__rules_common:
   - alert: CollectorDown
-    expr: >
+    expr:
       up == 0
     for: 3m
     labels: