diff --git a/bitnami/thanos/hack/sync_alerting_rules.py b/bitnami/thanos/hack/sync_alerting_rules.py
index 504c73187d4e8b..bd2110c379ad1d 100755
--- a/bitnami/thanos/hack/sync_alerting_rules.py
+++ b/bitnami/thanos/hack/sync_alerting_rules.py
@@ -48,7 +48,7 @@ def new_representer(dumper, data):
     'thanos-compact': 'compaction',
     'thanos-query': 'query',
     'thanos-receive': 'receive',
-    'thanos-ruler': 'ruler',
+    'thanos-rule': 'ruler',
     'thanos-sidecar': 'sidecar',
     'thanos-store': 'store_gateway'
 }
diff --git a/bitnami/thanos/templates/alert-rule/thanos-rule.yaml b/bitnami/thanos/templates/alert-rule/ruler.yaml
similarity index 99%
rename from bitnami/thanos/templates/alert-rule/thanos-rule.yaml
rename to bitnami/thanos/templates/alert-rule/ruler.yaml
index 492a7dd1e157e7..1e1ccd9ed53ea4 100644
--- a/bitnami/thanos/templates/alert-rule/thanos-rule.yaml
+++ b/bitnami/thanos/templates/alert-rule/ruler.yaml
@@ -8,7 +8,7 @@ Generated from 'thanos-rule' group from https://github.com/thanos-io/thanos.git
 Do not change in-place! In order to change this file run the script in
 https://github.com/bitnami/charts/tree/main/bitnami/thanos/hack
 */ -}}
-{{- if and .Values.metrics.enabled (or .Values.metrics.prometheusRule.default.create .Values.metrics.prometheusRule.default. ) }}
+{{- if and .Values.metrics.enabled (or .Values.metrics.prometheusRule.default.create .Values.metrics.prometheusRule.default.ruler ) }}
 apiVersion: monitoring.coreos.com/v1
 kind: PrometheusRule
 metadata: