diff --git a/pkg/dataprotection/restore/manager.go b/pkg/dataprotection/restore/manager.go
index 9db86397a57..afbd4b4e386 100644
--- a/pkg/dataprotection/restore/manager.go
+++ b/pkg/dataprotection/restore/manager.go
@@ -204,7 +204,9 @@ func (r *RestoreManager) getBackupActionSetForContinuous(reqCtx intctrlutil.Requ
 	if err != nil {
 		return nil, err
 	}
-	backupItems := append(fullBackupItems, incrementalBackupItems...)
+	backupItems := []dpv1alpha1.Backup{}
+	backupItems = append(backupItems, fullBackupItems...)
+	backupItems = append(backupItems, incrementalBackupItems...)
 	// sort by completed time in descending order
 	sort.Slice(backupItems, func(i, j int) bool {
 		i, j = j, i
diff --git a/pkg/dataprotection/restore/utils.go b/pkg/dataprotection/restore/utils.go
index 8fa28390533..6ae2330564a 100644
--- a/pkg/dataprotection/restore/utils.go
+++ b/pkg/dataprotection/restore/utils.go
@@ -434,24 +434,27 @@ func ValidateParentBackupSet(parentBackupSet *BackupActionSet, backupSet *Backup
 			parentBackup.Spec.BackupPolicyName, backup.Spec.BackupPolicyName)
 	}
 	// validate parent backup method
-	if parentBackupSet.ActionSet != nil && parentBackupSet.ActionSet.Spec.BackupType == dpv1alpha1.BackupTypeIncremental {
+	var parentBackupType dpv1alpha1.BackupType
+	if parentBackupSet.ActionSet != nil {
+		parentBackupType = parentBackupSet.ActionSet.Spec.BackupType
+	}
+	switch parentBackupType {
+	case dpv1alpha1.BackupTypeIncremental:
 		if parentBackup.Spec.BackupMethod != backup.Spec.BackupMethod {
 			return fmt.Errorf(`the parent incremental backup method "%s" is not the same with the child backup method "%s"`,
 				parentBackup.Spec.BackupMethod, backup.Spec.BackupMethod)
 		}
-	} else if parentBackupSet.ActionSet != nil && parentBackupSet.ActionSet.Spec.BackupType == dpv1alpha1.BackupTypeFull {
+	case dpv1alpha1.BackupTypeFull:
 		if parentBackup.Spec.BackupMethod != backup.Status.BackupMethod.CompatibleMethod {
 			return fmt.Errorf(`the parent full backup method "%s" is not compatible with the child backup method "%s"`,
 				parentBackup.Spec.BackupMethod, backup.Spec.BackupMethod)
 		}
-	} else {
-		return fmt.Errorf(`the parent backup "%s" is not incremental or full backup`,
-			parentBackup.Name)
+	default:
+		return fmt.Errorf(`the parent backup "%s" is not incremental or full backup`, parentBackup.Name)
 	}
 	// validate parent backup end time
 	if !utils.CompareWithBackupStopTime(*parentBackup, *backup) {
-		return fmt.Errorf(`the parent backup "%s" is not before the child backup "%s"`,
-			parentBackup.Name, backup.Name)
+		return fmt.Errorf(`the parent backup "%s" is not before the child backup "%s"`, parentBackup.Name, backup.Name)
 	}
 	return nil
 }