diff --git a/services.go b/services.go
index e1d5d8a..d02f4fa 100644
--- a/services.go
+++ b/services.go
@@ -24,18 +24,14 @@ func (s *Services) AddPrivateKey() error {
 		return err
 	}
 
+	if err := writeFile(`${HOME}/.ssh/id_rsa`, s.cfg.PrivateKey, 0400); err != nil {
+		return err
+	}
+
 	if err := runCmd(`chmod 700 $HOME/.ssh`); err != nil {
 		return err
 	}
 
-	if err := writeFile(`${HOME}/.ssh/id_rsa`, s.cfg.PrivateKey); err != nil {
-		return err
-	}
-
-	if err := runCmd(`chmod -R 400 $HOME/.ssh/.`); err != nil {
-		return err
-	}
-
 	return nil
 }
 
@@ -53,11 +49,7 @@ func (s *Services) ConfigureSSH() error {
 		return err
 	}
 
-	if err := writeFile(`${HOME}/.ssh/config`, bfr.String()); err != nil {
-		return err
-	}
-
-	if err := runCmd(`chmod 400 $HOME/.ssh/config`); err != nil {
+	if err := writeFile(`${HOME}/.ssh/config`, bfr.String(), 0400); err != nil {
 		return err
 	}
 
@@ -91,12 +83,11 @@ func runCmd(cmd string) error {
 	return script.Exec(fullCmd).Error()
 }
 
-func writeFile(path string, content string) error {
+func writeFile(path string, content string, mode os.FileMode) error {
 	fullPath := os.ExpandEnv(path)
 	log.Printf(" .. [file] %v", fullPath)
 
-	_, err := script.Echo(content).WriteFile(fullPath)
-	return err
+	return os.WriteFile(fullPath, []byte(content), mode)
 }
 
 var (