diff --git a/deploy/k8s/chart/templates/pdb.yaml b/deploy/k8s/chart/templates/pdb.yaml
index 87f8321..019257d 100644
--- a/deploy/k8s/chart/templates/pdb.yaml
+++ b/deploy/k8s/chart/templates/pdb.yaml
@@ -6,7 +6,11 @@ metadata:
   labels:
     {{- include "cortex-tenant.labels" . | nindent 4 }}
 spec:
+  {{- if .Values.podDisruptionBudget.maxUnavailable }}
+  maxUnavailable: {{ .Values.podDisruptionBudget.maxUnavailable }}
+  {{- else if .Values.podDisruptionBudget.minAvailable }}
   minAvailable: {{ .Values.podDisruptionBudget.minAvailable }}
+  {{- end }}
   selector:
     matchLabels:
       {{- include "cortex-tenant.selectorLabels" . | nindent 6 }}