diff --git a/base/pkg_version.go b/base/pkg_version.go
index d924967..b082904 100644
--- a/base/pkg_version.go
+++ b/base/pkg_version.go
@@ -39,38 +39,34 @@ func (this PkgVersion) GetSourceMapPath(prefix ...string) string {
 	)
 }
 
-func (this PkgVersion) GetFile(app *do.Injector) ([]byte, error) {
+func (this PkgVersion) GetFile(app *do.Injector) (file string, err error) {
 	if this.Id == 0 {
-		return nil, contracts.ErrPkgUnknown
+		return file, contracts.ErrPkgUnknown
 	}
 
 	res, ok := do.MustInvoke[contracts.GetResource](app)("PkgVersion")
 
 	if !ok {
-		return nil, contracts.ErrResNotFound
+		return file, contracts.ErrResNotFound
 	}
 
-	file := []byte{}
-
-	_, err := res.GetDBTable().Where("id", this.Id).Value(&file, "file")
+	_, err = res.GetDBTable().Where("id", this.Id).Value(&file, "file")
 
 	return file, err
 }
 
-func (this PkgVersion) GetSourceMap(app *do.Injector) ([]byte, error) {
+func (this PkgVersion) GetSourceMap(app *do.Injector) (file string, err error) {
 	if this.Id == 0 {
-		return nil, contracts.ErrPkgUnknown
+		return file, contracts.ErrPkgUnknown
 	}
 
 	res, ok := do.MustInvoke[contracts.GetResource](app)("PkgVersion")
 
 	if !ok {
-		return nil, contracts.ErrResNotFound
+		return file, contracts.ErrResNotFound
 	}
 
-	file := []byte{}
-
-	_, err := res.GetDBTable().Where("id", this.Id).Value(&file, "sourcemap")
+	_, err = res.GetDBTable().Where("id", this.Id).Value(&file, "sourcemap")
 
 	return file, err
 }