diff --git a/internal/config/config.go b/internal/config/config.go
index 927bad905c..beae6a5720 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -120,7 +120,7 @@ type Config struct {
 	GarbageCollectionInterval metav1.Duration `json:"garbageCollectionInterval,omitempty"`
 
 	// ClusterMonitorInterval determines how often the cluster monitor will check for offline downstream clusters.
-	ClusterMonitorInterval metav1.Duration `json:"clusterMonitorInterval.omitempty"`
+	ClusterMonitorInterval metav1.Duration `json:"clusterMonitorInterval,omitempty"`
 
 	// ClusterMonitorThreshold determines how long must have elapsed since a downstream cluster's Fleet agent last
 	// reported its status to the management cluster, before that downstream cluster is considered offline.