1 files changed, 5 insertions, 1 deletions
diff --git a/pkgid.go b/pkgid.go
index 1268568..f90a33b 100644
--- a/pkgid.go
+++ b/pkgid.go
@@ -21,8 +21,12 @@ type PkgId struct {
 	Foil
 }
 
+func (p PkgId) String() string {
+	return fmt.Sprintf("%s.%s.%s.%s.%s.%s%s%s", p.TrimSize, p.ColorType, p.Quality, p.Binding, p.Paper, p.Finish, p.Linen, p.Foil)
+}
+
 func (p PkgId) MarshalText() ([]byte, error) {
-	return []byte(fmt.Sprintf("%s.%s.%s.%s.%s.%s%s%s", p.TrimSize, p.ColorType, p.Quality, p.Binding, p.Paper, p.Finish, p.Linen, p.Foil)), nil
+	return []byte(p.String()), nil
 }
 
 func (p *PkgId) UnmarshalText(text []byte) error {