diff --git a/api/v1alpha1/backupsession_types.go b/api/v1alpha1/backupsession_types.go
index 7ca9d8e..bb6e068 100644
--- a/api/v1alpha1/backupsession_types.go
+++ b/api/v1alpha1/backupsession_types.go
@@ -63,6 +63,8 @@ type BackupSessionStatus struct {
 	// INSERT ADDITIONAL STATUS FIELD - define observed state of cluster
 	// Important: Run "make" to regenerate code after modifying this file
 	// +optional
+	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
+	// +optional
 	BackupState `json:"state,omitempty"`
 	// +optional
 	StartTime *metav1.Time `json:"startTime,omitempty"`