diff --git a/kubernetes/apps/monitoring/kube-prometheus-stack/app/alertmanagerconfig.yaml b/kubernetes/apps/monitoring/kube-prometheus-stack/app/alertmanagerconfig.yaml
index e292822ad..f6850ce72 100644
--- a/kubernetes/apps/monitoring/kube-prometheus-stack/app/alertmanagerconfig.yaml
+++ b/kubernetes/apps/monitoring/kube-prometheus-stack/app/alertmanagerconfig.yaml
@@ -26,6 +26,7 @@ spec:
         - name: severity
           value: critical
           matchType: =
+      targetMatch:
         - name: severity
           value: warning
           matchType: =~