diff --git a/prometheus-alertmanager/templates/configmap-etc.yaml b/prometheus-alertmanager/templates/configmap-etc.yaml
index 35bab917e..602a9b990 100644
--- a/prometheus-alertmanager/templates/configmap-etc.yaml
+++ b/prometheus-alertmanager/templates/configmap-etc.yaml
@@ -24,4 +24,6 @@ metadata:
 data:
   alertmanager.yml:
 {{- toYaml .Values.conf.alertmanager | indent 4 }}
+  alert-templates.tmpl:
+{{- toYaml .Values.conf.alert_templates | indent 4 }}
 {{- end }}
diff --git a/prometheus-alertmanager/templates/statefulset.yaml b/prometheus-alertmanager/templates/statefulset.yaml
index f4599254b..d0ef9cf8b 100644
--- a/prometheus-alertmanager/templates/statefulset.yaml
+++ b/prometheus-alertmanager/templates/statefulset.yaml
@@ -77,6 +77,10 @@ spec:
           volumeMounts:
             - name: etc-alertmanager
               mountPath: /etc/config
+            - name: alertmanager-etc
+              mountPath: /etc/alertmanager/template/alert-templates.tmpl
+              subPath: alert-templates.tmpl
+              readOnly: true
             - name: alertmanager-etc
               mountPath: /etc/config/alertmanager.yml
               subPath: alertmanager.yml
diff --git a/prometheus-alertmanager/values.yaml b/prometheus-alertmanager/values.yaml
index d30e73301..254fe242c 100644
--- a/prometheus-alertmanager/values.yaml
+++ b/prometheus-alertmanager/values.yaml
@@ -270,3 +270,4 @@ conf:
         room_id: 85
         message_format: html
         notify: true
+  alertmanager_templates: null