diff --git a/charts/argo-workflows/templates/controller/workflow-controller-servicemonitor.yaml b/charts/argo-workflows/templates/controller/workflow-controller-servicemonitor.yaml
index 65396943..29fe1b59 100644
--- a/charts/argo-workflows/templates/controller/workflow-controller-servicemonitor.yaml
+++ b/charts/argo-workflows/templates/controller/workflow-controller-servicemonitor.yaml
@@ -3,11 +3,7 @@ apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   name: {{ template "argo-workflows.controller.fullname" . }}
-  {{- if .Values.controller.serviceMonitor.namespace }}
-  namespace: {{ .Values.controller.serviceMonitor.namespace }}
-  {{- else }}
-  namespace: {{ .Release.Namespace | quote }}
-  {{- end }}
+  namespace: {{ default .Release.Namespace .Values.controller.serviceMonitor.namespace | quote }}
   labels:
     {{- include "argo-workflows.labels" (dict "context" . "component" .Values.controller.name "name" .Values.controller.name) | nindent 4 }}
     {{- with .Values.controller.serviceMonitor.additionalLabels }}