diff --git a/cmd/server.go b/cmd/server.go
index e5a5f91..6e36678 100644
--- a/cmd/server.go
+++ b/cmd/server.go
@@ -15,6 +15,7 @@ import (
 	"github.com/synctv-org/synctv/internal/rtmp"
 	sysnotify "github.com/synctv-org/synctv/internal/sysNotify"
 	"github.com/synctv-org/synctv/server"
+	"github.com/synctv-org/synctv/utils"
 )
 
 var ServerCmd = &cobra.Command{
@@ -63,6 +64,8 @@ func Server(cmd *cobra.Command, args []string) {
 	if err != nil {
 		log.Fatal(err)
 	}
+	utils.OptFilePath(&conf.Conf.Server.CertPath)
+	utils.OptFilePath(&conf.Conf.Server.KeyPath)
 	if conf.Conf.Rtmp.Enable {
 		if useMux {
 			muxer := cmux.New(serverListener)
diff --git a/internal/bootstrap/config.go b/internal/bootstrap/config.go
index 2b4b1c3..f805718 100644
--- a/internal/bootstrap/config.go
+++ b/internal/bootstrap/config.go
@@ -28,11 +28,7 @@ func InitConfig(ctx context.Context) error {
 		if flags.ConfigFile == "" {
 			flags.ConfigFile = filepath.Join(flags.DataDir, "config.yaml")
 		} else {
-			fileAbs, err := filepath.Abs(flags.ConfigFile)
-			if err != nil {
-				log.Fatalf("get config file abs path error: %v", err)
-			}
-			flags.ConfigFile = fileAbs
+			utils.OptFilePath(&flags.ConfigFile)
 		}
 		err := confFromConfig(flags.ConfigFile, conf.Conf)
 		if err != nil {
diff --git a/internal/bootstrap/db.go b/internal/bootstrap/db.go
index bd1103b..8dabcd9 100644
--- a/internal/bootstrap/db.go
+++ b/internal/bootstrap/db.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
-	"path/filepath"
 	"strings"
 	"time"
 
@@ -13,6 +12,7 @@ import (
 	"github.com/synctv-org/synctv/cmd/flags"
 	"github.com/synctv-org/synctv/internal/conf"
 	"github.com/synctv-org/synctv/internal/db"
+	"github.com/synctv-org/synctv/utils"
 	"gorm.io/driver/mysql"
 	"gorm.io/driver/postgres"
 	"gorm.io/gorm"
@@ -67,9 +67,7 @@ func InitDatabase(ctx context.Context) error {
 			if !strings.HasSuffix(conf.Conf.Database.DBName, ".db") {
 				conf.Conf.Database.DBName = conf.Conf.Database.DBName + ".db"
 			}
-			if !filepath.IsAbs(conf.Conf.Database.DBName) {
-				conf.Conf.Database.DBName = filepath.Join(flags.DataDir, conf.Conf.Database.DBName)
-			}
+			utils.OptFilePath(&conf.Conf.Database.DBName)
 			dsn = fmt.Sprintf("%s?_journal_mode=WAL&_vacuum=incremental&_pragma=foreign_keys(1)", conf.Conf.Database.DBName)
 			log.Infof("sqlite3 database file: %s", conf.Conf.Database.DBName)
 		}
diff --git a/internal/bootstrap/log.go b/internal/bootstrap/log.go
index 5049a89..91c07d5 100644
--- a/internal/bootstrap/log.go
+++ b/internal/bootstrap/log.go
@@ -5,12 +5,12 @@ import (
 	"io"
 	"log"
 	"os"
-	"path/filepath"
 
 	"github.com/natefinch/lumberjack"
 	"github.com/sirupsen/logrus"
 	"github.com/synctv-org/synctv/cmd/flags"
 	"github.com/synctv-org/synctv/internal/conf"
+	"github.com/synctv-org/synctv/utils"
 	"github.com/zijiren233/go-colorable"
 )
 
@@ -27,9 +27,7 @@ func setLog(l *logrus.Logger) {
 func InitLog(ctx context.Context) error {
 	setLog(logrus.StandardLogger())
 	if conf.Conf.Log.Enable {
-		if !filepath.IsAbs(conf.Conf.Log.FilePath) {
-			conf.Conf.Log.FilePath = filepath.Join(flags.DataDir, conf.Conf.Log.FilePath)
-		}
+		utils.OptFilePath(&conf.Conf.Log.FilePath)
 		var l = &lumberjack.Logger{
 			Filename:   conf.Conf.Log.FilePath,
 			MaxSize:    conf.Conf.Log.MaxSize,
diff --git a/utils/utils.go b/utils/utils.go
index 06ca3c9..3fcc188 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -11,6 +11,7 @@ import (
 	"sync"
 	"sync/atomic"
 
+	"github.com/synctv-org/synctv/cmd/flags"
 	yamlcomment "github.com/zijiren233/yaml-comment"
 	"gopkg.in/yaml.v3"
 )
@@ -230,3 +231,12 @@ func getLocalIPs() []net.IP {
 
 	return localIPs
 }
+
+func OptFilePath(filePath *string) {
+	if filePath == nil || *filePath == "" {
+		return
+	}
+	if !filepath.IsAbs(*filePath) {
+		*filePath = filepath.Join(flags.DataDir, *filePath)
+	}
+}