diff --git a/ansible/roles/stack-monitor-stateful/templates/alertrules.kafkalag.yml b/ansible/roles/stack-monitor-stateful/templates/alertrules.kafkalag.yml
index 34a450fb30a2e4e4175d886fe1a217b623f945b2..c6c393d094b878cdf1783b008613d786dce0eb20 100644
--- a/ansible/roles/stack-monitor-stateful/templates/alertrules.kafkalag.yml
+++ b/ansible/roles/stack-monitor-stateful/templates/alertrules.kafkalag.yml
@@ -2,7 +2,7 @@ groups:
 - name: alertrules.kafka_lag
   rules:
   - alert: secor {{ kafka_topic_prefix.telemetry }}.ingestion.backup consumer group lag
-    expr: kafka_consumergroupzookeeper_lag_zookeeper{consumergroup="'{{ kafka_topic_prefix.telemetry }}'.telemetry.ingestion.backup"} > 10
+    expr: 'kafka_consumergroupzookeeper_lag_zookeeper{consumergroup="{{ kafka_topic_prefix.telemetry }}.telemetry.ingestion.backup"}' > 10
     for: 1m
     labels:
       severity: critical