diff --git a/cmd/backup.go b/cmd/backup.go
index 0bdb118..42ce7b2 100644
--- a/cmd/backup.go
+++ b/cmd/backup.go
@@ -30,8 +30,6 @@ func init() {
 	BackupCmd.PersistentFlags().StringP("storage", "s", "local", "Storage. local or s3")
 	BackupCmd.PersistentFlags().StringP("path", "P", "", "AWS S3 path without file name. eg: /custom_path or ssh remote path `/home/foo/backup`")
 	BackupCmd.PersistentFlags().StringP("cron-expression", "", "", "Backup cron expression")
-	BackupCmd.PersistentFlags().BoolP("prune", "", false, "Delete old backup, default disabled")
-	BackupCmd.PersistentFlags().IntP("keep-last", "", 7, "Delete files created more than specified days ago, default 7 days")
 	BackupCmd.PersistentFlags().BoolP("disable-compression", "", false, "Disable backup compression")
 
 }
diff --git a/pkg/config.go b/pkg/config.go
index c227ca9..9e4e5fb 100644
--- a/pkg/config.go
+++ b/pkg/config.go
@@ -177,8 +177,11 @@ func initBackupConfig(cmd *cobra.Command) *BackupConfig {
 	//Get flag value and set env
 	remotePath := utils.GetEnvVariable("REMOTE_PATH", "SSH_REMOTE_PATH")
 	storage = utils.GetEnv(cmd, "storage", "STORAGE")
-	backupRetention, _ := cmd.Flags().GetInt("keep-last")
-	prune, _ := cmd.Flags().GetBool("prune")
+	prune := false
+	backupRetention := utils.GetIntEnv("BACKUP_RETENTION_DAYS")
+	if backupRetention > 0 {
+		prune = true
+	}
 	disableCompression, _ = cmd.Flags().GetBool("disable-compression")
 	_, _ = cmd.Flags().GetString("mode")
 	passphrase := os.Getenv("GPG_PASSPHRASE")