diff --git a/charts/argo-rollouts/templates/controller/servicemonitor.yaml b/charts/argo-rollouts/templates/controller/servicemonitor.yaml
index 62713764..d7ab901e 100644
--- a/charts/argo-rollouts/templates/controller/servicemonitor.yaml
+++ b/charts/argo-rollouts/templates/controller/servicemonitor.yaml
@@ -3,7 +3,7 @@ apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   name: {{ include "argo-rollouts.fullname" . }}
-  namespace: {{ .Release.Namespace | quote }}
+  namespace: {{ default .Release.Namespace .Values.controller.metrics.serviceMonitor.namespace | quote }}
   labels:
     app.kubernetes.io/component: {{ .Values.controller.component }}
     {{- include "argo-rollouts.labels" . | nindent 4 }}