diff --git a/charts/capsule/values.yaml b/charts/capsule/values.yaml
index bec3be3b..f7734b70 100644
--- a/charts/capsule/values.yaml
+++ b/charts/capsule/values.yaml
@@ -66,7 +66,7 @@ podSecurityPolicy:
 serviceMonitor:
   enabled: false
   # Install the ServiceMonitor into a different Namespace, as the monitoring stack one (default: the release one)
-  namespace:
+  namespace: ''
   # Assign additional labels according to Prometheus' serviceMonitorSelector matching labels
   labels: {}
   annotations: {}