diff --git a/internal/domain/config.go b/internal/domain/config.go
index 9072a4e..a44c8ec 100644
--- a/internal/domain/config.go
+++ b/internal/domain/config.go
@@ -3,15 +3,16 @@ package domain
 import (
 	"net"
 	"net/netip"
+	"path/filepath"
 	"strconv"
 	"testing"
 )
 
 type Config struct {
-	ContentDir string `env:"CONTENT_DIR" envDefault:"content/"`
+	ContentDir string `env:"CONTENT_DIR" envDefault:"content"`
 	Host       string `env:"HOST" envDefault:"0.0.0.0"`
-	ThemeDir   string `env:"THEME_DIR" envDefault:"theme/"`
-	StaticDir  string `env:"STATIC_DIR" envDefault:"static/"`
+	ThemeDir   string `env:"THEME_DIR" envDefault:"theme"`
+	StaticDir  string `env:"STATIC_DIR" envDefault:"static"`
 	Port       uint16 `env:"PORT" envDefault:"3000"`
 }
 
@@ -19,10 +20,10 @@ func TestConfig(tb testing.TB) *Config {
 	tb.Helper()
 
 	return &Config{
-		ContentDir: "testdata/content/",
+		ContentDir: filepath.Join("testdata", "content"),
 		Host:       "0.0.0.0",
-		ThemeDir:   "testdata/theme/",
-		StaticDir:  "testdata/static/",
+		ThemeDir:   filepath.Join("testdata", "theme"),
+		StaticDir:  filepath.Join("testdata", "static"),
 		Port:       3000,
 	}
 }
diff --git a/internal/domain/file.go b/internal/domain/file.go
index 38b27fe..0b62c32 100644
--- a/internal/domain/file.go
+++ b/internal/domain/file.go
@@ -24,7 +24,7 @@ func NewFile(path string) File {
 		Language:            LanguageUnd,
 		baseFileName:        "",
 		contentBaseName:     "",
-		dir:                 filepath.Dir(path) + "/",
+		dir:                 filepath.Dir(path) + string(filepath.Separator),
 		ext:                 strings.TrimPrefix(filepath.Ext(path), "."),
 		filename:            path,
 		logicalName:         filepath.Base(path),