diff --git a/gopmod/classfile.go b/gopmod/classfile.go
index 86043ca..da090dc 100644
--- a/gopmod/classfile.go
+++ b/gopmod/classfile.go
@@ -116,7 +116,7 @@ func (p *Module) importClassFrom(modVer module.Version, impcls func(c *Project))
 	if err != nil {
 		return
 	}
-	c := mod.Opt.Project
+	c := mod.Project()
 	if c == nil {
 		return ErrNotClassFileMod
 	}
diff --git a/modload/module.go b/modload/module.go
index 742b4ce..765d2ca 100644
--- a/modload/module.go
+++ b/modload/module.go
@@ -193,6 +193,14 @@ func LoadFrom(gomod, gopmod string) (p Module, err error) {
 
 // -----------------------------------------------------------------------------
 
+func (p Module) Project() *modfile.Project {
+	return p.Opt.Project
+}
+
+func hasGopExtended(opt *modfile.File) bool {
+	return opt.Project != nil || len(opt.Import) > 0
+}
+
 // Save saves all changes of this module.
 func (p Module) Save() (err error) {
 	if p.IsDefault() {
@@ -209,7 +217,7 @@ func (p Module) Save() (err error) {
 		return
 	}
 
-	if opt := p.Opt; gopExtended(opt) {
+	if opt := p.Opt; hasGopExtended(opt) {
 		data, err = opt.Format()
 		if err != nil {
 			return
@@ -219,10 +227,6 @@ func (p Module) Save() (err error) {
 	return
 }
 
-func gopExtended(opt *modfile.File) bool {
-	return opt.Project != nil || len(opt.Import) > 0
-}
-
 /*
 const (
 	gopMod = "github.com/goplus/gop"