diff --git a/k8s/core/prom-stack/grafana-alerting-configmap.yaml b/k8s/core/prom-stack/grafana-alerting-configmap.yaml
index 89c0d0b..fd5dd0c 100644
--- a/k8s/core/prom-stack/grafana-alerting-configmap.yaml
+++ b/k8s/core/prom-stack/grafana-alerting-configmap.yaml
@@ -44,7 +44,7 @@ data:
             disableResolveMessage: false
             settings:
               bottoken: $TELEGRAM_BOT_TOKEN
-              chatid: "$TELEGRAM_CHAT_ID"
+              chatid: "${TELEGRAM_CHAT_ID}"
               message: |
                 {{ if eq .Status "firing" }}🔥 FIRING{{ else }}✅ RESOLVED{{ end }}