diff --git a/file_darwin.go b/file_darwin.go
index e46ad9e..a8e89a8 100644
--- a/file_darwin.go
+++ b/file_darwin.go
@@ -2,11 +2,13 @@ package zenity
 
 import (
 	"strings"
+
+	"github.com/ncruces/zenity/internal/osa"
 )
 
 func SelectFile(options ...Option) (string, error) {
 	opts := optsParse(options)
-	out, err := osaRun("file", osaFile{
+	out, err := osa.Run("file", osa.File{
 		Operation: "chooseFile",
 		Prompt:    opts.title,
 		Location:  opts.filename,
@@ -23,7 +25,7 @@ func SelectFile(options ...Option) (string, error) {
 
 func SelectFileMutiple(options ...Option) ([]string, error) {
 	opts := optsParse(options)
-	out, err := osaRun("file", osaFile{
+	out, err := osa.Run("file", osa.File{
 		Operation: "chooseFile",
 		Multiple:  true,
 		Prompt:    opts.title,
@@ -44,7 +46,7 @@ func SelectFileMutiple(options ...Option) ([]string, error) {
 
 func SelectFileSave(options ...Option) (string, error) {
 	opts := optsParse(options)
-	out, err := osaRun("file", osaFile{
+	out, err := osa.Run("file", osa.File{
 		Operation: "chooseFileName",
 		Prompt:    opts.title,
 		Location:  opts.filename,
@@ -60,7 +62,7 @@ func SelectFileSave(options ...Option) (string, error) {
 
 func SelectDirectory(options ...Option) (string, error) {
 	opts := optsParse(options)
-	out, err := osaRun("file", osaFile{
+	out, err := osa.Run("file", osa.File{
 		Operation: "chooseFolder",
 		Prompt:    opts.title,
 		Location:  opts.filename,
@@ -83,11 +85,3 @@ func appleFilters(filters []FileFilter) []string {
 	}
 	return filter
 }
-
-type osaFile struct {
-	Operation string
-	Prompt    string
-	Location  string
-	Type      []string
-	Multiple  bool
-}
diff --git a/internal/osa/osa_darwin.go b/internal/osa/osa_darwin.go
new file mode 100644
index 0000000..b497663
--- /dev/null
+++ b/internal/osa/osa_darwin.go
@@ -0,0 +1,43 @@
+package osa
+
+import (
+	"os/exec"
+	"strings"
+)
+
+//go:generate go run scripts/generate.go scripts/
+
+func Run(script string, data interface{}) ([]byte, error) {
+	var buf strings.Builder
+
+	err := scripts.ExecuteTemplate(&buf, script, data)
+	if err != nil {
+		return nil, err
+	}
+
+	res := buf.String()
+	res = res[len("<script>") : len(res)-len("</script>")]
+	cmd := exec.Command("osascript", "-l", "JavaScript")
+	cmd.Stdin = strings.NewReader(res)
+	return cmd.Output()
+}
+
+type File struct {
+	Operation string
+	Prompt    string
+	Location  string
+	Type      []string
+	Multiple  bool
+}
+
+type Msg struct {
+	Dialog  bool
+	Text    string
+	Message string
+	As      string
+	Title   string
+	Icon    string
+	Buttons []string
+	Cancel  int
+	Default int
+}
diff --git a/osa_scripts/file.gots b/internal/osa/scripts/file.gots
similarity index 100%
rename from osa_scripts/file.gots
rename to internal/osa/scripts/file.gots
diff --git a/osa_scripts/generate.go b/internal/osa/scripts/generate.go
similarity index 93%
rename from osa_scripts/generate.go
rename to internal/osa/scripts/generate.go
index 30c3049..9c6fe9f 100644
--- a/osa_scripts/generate.go
+++ b/internal/osa/scripts/generate.go
@@ -68,9 +68,9 @@ func main() {
 
 var generator = template.Must(template.New("").Parse(`// Code generated by zenity; DO NOT EDIT.
 
-package zenity
+package osa
 
 import "html/template"
 
-var osaScripts = template.Must(template.New("").Parse(` + "`{{.}}`" + `))
+var scripts = template.Must(template.New("").Parse(` + "`{{.}}`" + `))
 `))
diff --git a/osa_scripts/msg.gots b/internal/osa/scripts/msg.gots
similarity index 100%
rename from osa_scripts/msg.gots
rename to internal/osa/scripts/msg.gots
diff --git a/msg_darwin.go b/msg_darwin.go
index cfb945a..251ca87 100644
--- a/msg_darwin.go
+++ b/msg_darwin.go
@@ -2,6 +2,8 @@ package zenity
 
 import (
 	"os/exec"
+
+	"github.com/ncruces/zenity/internal/osa"
 )
 
 func Error(text string, options ...Option) (bool, error) {
@@ -23,7 +25,7 @@ func Warning(text string, options ...Option) (bool, error) {
 func message(dialog int, text string, options []Option) (bool, error) {
 	opts := optsParse(options)
 
-	data := osaMsg{
+	data := osa.Msg{
 		Text:   text,
 		Title:  opts.title,
 		Dialog: opts.icon != 0 || dialog == 2,
@@ -96,7 +98,7 @@ func message(dialog int, text string, options []Option) (bool, error) {
 		}
 	}
 
-	_, err := osaRun("msg", data)
+	_, err := osa.Run("msg", data)
 	if err, ok := err.(*exec.ExitError); ok && err.ExitCode() == 1 {
 		return false, nil
 	}
@@ -105,15 +107,3 @@ func message(dialog int, text string, options []Option) (bool, error) {
 	}
 	return true, err
 }
-
-type osaMsg struct {
-	Dialog  bool
-	Text    string
-	Message string
-	As      string
-	Title   string
-	Icon    string
-	Buttons []string
-	Cancel  int
-	Default int
-}
diff --git a/osa_darwin.go b/osa_darwin.go
deleted file mode 100644
index 4f5c793..0000000
--- a/osa_darwin.go
+++ /dev/null
@@ -1,22 +0,0 @@
-package zenity
-
-import (
-	"os/exec"
-	"strings"
-)
-
-//go:generate go run osa_scripts/generate.go osa_scripts/
-
-func osaRun(script string, data interface{}) ([]byte, error) {
-	var buf strings.Builder
-
-	err := osaScripts.ExecuteTemplate(&buf, script, data)
-	if err != nil {
-		return nil, err
-	}
-
-	var res = buf.String()
-	cmd := exec.Command("osascript", "-l", "JavaScript")
-	cmd.Stdin = strings.NewReader(res[len("<script>") : len(res)-len("</script>")])
-	return cmd.Output()
-}