diff --git a/deploy/chart/templates/0000_90_olm_01-prometheus-rule.yaml b/deploy/chart/templates/0000_90_olm_01-prometheus-rule.yaml
index f9dd9ba3f7..64bd3c7cf1 100644
--- a/deploy/chart/templates/0000_90_olm_01-prometheus-rule.yaml
+++ b/deploy/chart/templates/0000_90_olm_01-prometheus-rule.yaml
@@ -12,7 +12,7 @@ spec:
   - name: olm.csv_abnormal.rules
     rules:
       - alert: CsvAbnormalFailedOver2Min
-        expr: last_over_time(csv_abnormal{phase="Failed"}[5m]}
+        expr: last_over_time(csv_abnormal{phase="Failed"}[5m])
         for: 2m
         labels:
           severity: warning