diff --git a/api/v1alpha1/backup_types.go b/api/v1alpha1/backup_types.go
index 48622e4c2..3fd8fa791 100644
--- a/api/v1alpha1/backup_types.go
+++ b/api/v1alpha1/backup_types.go
@@ -43,7 +43,7 @@ type BackupSpec struct {
 	NFSServerAddress string `json:"nfsServerAddress,omitempty"`
 
 	// ClusterName represents the cluster name to backup
-	ClusterName string `json:"clustname"`
+	ClusterName string `json:"clusterName"`
 
 	// History Limit of job
 	// +optional
diff --git a/api/v1alpha1/mysqlcluster_types.go b/api/v1alpha1/mysqlcluster_types.go
index d768a62ef..48c30f4a4 100644
--- a/api/v1alpha1/mysqlcluster_types.go
+++ b/api/v1alpha1/mysqlcluster_types.go
@@ -388,8 +388,6 @@ type MysqlCluster struct {
 	Status MysqlClusterStatus `json:"status,omitempty"`
 }
 
-// +kubebuilder:object:root=true
-
 // MysqlClusterList contains a list of MysqlCluster
 type MysqlClusterList struct {
 	metav1.TypeMeta `json:",inline"`
diff --git a/api/v1alpha1/mysqlcluster_webhook.go b/api/v1alpha1/mysqlcluster_webhook.go
index 7b84e9ed2..14c89d001 100644
--- a/api/v1alpha1/mysqlcluster_webhook.go
+++ b/api/v1alpha1/mysqlcluster_webhook.go
@@ -79,7 +79,6 @@ func (r *MysqlCluster) ValidateDelete() error {
 
 // Validate volume size, forbidden shrink storage size.
 func (r *MysqlCluster) validateVolumeSize(oldCluster *MysqlCluster) error {
-
 	oldStorageSize, err := resource.ParseQuantity(oldCluster.Spec.Persistence.Size)
 	if err != nil {
 		return err
@@ -88,7 +87,7 @@ func (r *MysqlCluster) validateVolumeSize(oldCluster *MysqlCluster) error {
 	if err != nil {
 		return err
 	}
-	// =1 means that old storage size is greater then new
+	// =1 means that old storage size is greater than new.
 	if oldStorageSize.Cmp(newStorageSize) == 1 {
 		return apierrors.NewForbidden(schema.GroupResource{}, "", fmt.Errorf("volesize can not be decreased"))
 	}
diff --git a/charts/mysql-operator/crds/mysql.radondb.com_backups.yaml b/charts/mysql-operator/crds/mysql.radondb.com_backups.yaml
index c9cbca115..6967215b3 100644
--- a/charts/mysql-operator/crds/mysql.radondb.com_backups.yaml
+++ b/charts/mysql-operator/crds/mysql.radondb.com_backups.yaml
@@ -36,7 +36,7 @@ spec:
           spec:
             description: BackupSpec defines the desired state of Backup
             properties:
-              clustname:
+              clusterName:
                 description: ClusterName represents the cluster name to backup
                 type: string
               historyLimit:
@@ -56,7 +56,7 @@ spec:
                 description: Represents the ip address of the nfs server.
                 type: string
             required:
-            - clustname
+            - clusterName
             type: object
           status:
             description: BackupStatus defines the observed state of Backup
diff --git a/config/crd/bases/mysql.radondb.com_backups.yaml b/config/crd/bases/mysql.radondb.com_backups.yaml
index c9cbca115..6967215b3 100644
--- a/config/crd/bases/mysql.radondb.com_backups.yaml
+++ b/config/crd/bases/mysql.radondb.com_backups.yaml
@@ -36,7 +36,7 @@ spec:
           spec:
             description: BackupSpec defines the desired state of Backup
             properties:
-              clustname:
+              clusterName:
                 description: ClusterName represents the cluster name to backup
                 type: string
               historyLimit:
@@ -56,7 +56,7 @@ spec:
                 description: Represents the ip address of the nfs server.
                 type: string
             required:
-            - clustname
+            - clusterName
             type: object
           status:
             description: BackupStatus defines the observed state of Backup