diff --git a/apis/apps/v1alpha1/cloneset_types.go b/apis/apps/v1alpha1/cloneset_types.go
index e9652e9514..860f6ae9c9 100644
--- a/apis/apps/v1alpha1/cloneset_types.go
+++ b/apis/apps/v1alpha1/cloneset_types.go
@@ -178,7 +178,7 @@ type CloneSetStatus struct {
 
 	// UpdatedAvailableReplicas is the number of Pods created by the CloneSet controller from the CloneSet version
 	// indicated by updateRevision and have a Ready Condition for at least minReadySeconds.
-	UpdatedAvailableReplicas int32 `json:"updatedAvailableReplicas"`
+	UpdatedAvailableReplicas int32 `json:"updatedAvailableReplicas,omitempty"`
 
 	// ExpectedUpdatedReplicas is the number of Pods that should be updated by CloneSet controller.
 	// This field is calculated via Replicas - Partition.
diff --git a/config/crd/bases/apps.kruise.io_clonesets.yaml b/config/crd/bases/apps.kruise.io_clonesets.yaml
index 2a830e646e..c768fcec1f 100644
--- a/config/crd/bases/apps.kruise.io_clonesets.yaml
+++ b/config/crd/bases/apps.kruise.io_clonesets.yaml
@@ -518,7 +518,6 @@ spec:
             - availableReplicas
             - readyReplicas
             - replicas
-            - updatedAvailableReplicas
             - updatedReadyReplicas
             - updatedReplicas
             type: object