diff --git a/cmd/climc/shell/servers.go b/cmd/climc/shell/servers.go
index 27cbae80de..be6db6bec8 100644
--- a/cmd/climc/shell/servers.go
+++ b/cmd/climc/shell/servers.go
@@ -167,7 +167,11 @@ func init() {
 	})
 
 	R(&options.ServerDeleteBackupOptions{}, "server-delete-backup", "Guest delete backup", func(s *mcclient.ClientSession, opts *options.ServerDeleteBackupOptions) error {
-		ret, err := modules.Servers.PerformAction(s, opts.ID, "delete-backup", nil)
+		params, err := options.StructToParams(opts)
+		if err != nil {
+			return err
+		}
+		ret, err := modules.Servers.PerformAction(s, opts.ID, "delete-backup", params)
 		if err != nil {
 			return err
 		}
diff --git a/pkg/compute/models/guest_actions.go b/pkg/compute/models/guest_actions.go
index b1cae7d671..60beaf469e 100644
--- a/pkg/compute/models/guest_actions.go
+++ b/pkg/compute/models/guest_actions.go
@@ -2373,7 +2373,7 @@ func (self *SGuest) PerformDeleteBackup(ctx context.Context, userCred mcclient.T
 	}
 
 	taskData := jsonutils.NewDict()
-	taskData.Set("pruge", jsonutils.NewBool(jsonutils.QueryBoolean(data, "purge", false)))
+	taskData.Set("purge", jsonutils.NewBool(jsonutils.QueryBoolean(data, "purge", false)))
 	taskData.Set("host_id", jsonutils.NewString(self.BackupHostId))
 	taskData.Set("failed_status", jsonutils.NewString(VM_BACKUP_DELETE_FAILED))
 
diff --git a/pkg/mcclient/options/servers.go b/pkg/mcclient/options/servers.go
index ba7b82c87e..6e8150fd28 100644
--- a/pkg/mcclient/options/servers.go
+++ b/pkg/mcclient/options/servers.go
@@ -47,7 +47,7 @@ type ServerIdsOptions struct {
 
 type ServerDeleteBackupOptions struct {
 	ID    string `help:"ID of the server" json:"-"`
-	Purge bool   `help:"Purge Guest Backup" json:"purge"`
+	Purge *bool  `help:"Purge Guest Backup" json:"purge"`
 }
 
 type ServerShowOptions struct {