diff --git a/configs/init-functions.el b/configs/init-functions.el
index cfde946..41bfe1f 100644
--- a/configs/init-functions.el
+++ b/configs/init-functions.el
@@ -81,5 +81,18 @@ If PROJECT is not specified, assume current project root."
   (when-let (project (project-current))
     (project-root project)))
 
+;; Cambia entre ocultar o no la barra de título cuando está maximizado
+(defun toggle-hide-title-bar()
+  "Toggle hide title bar when the frame is maximed."
+  (interactive)
+  (if (and (boundp 'title-bar-maximixed) title-bar-maximixed)
+      (progn
+        (remove-hook 'window-size-change-functions 'frame-hide-title-bar-when-maximized)
+        (setq title-bar-maximixed nil))
+    (progn
+      (add-hook 'window-size-change-functions 'frame-hide-title-bar-when-maximized)
+      (setq title-bar-maximixed t)))
+  )
+
 (provide 'init-functions)
 ;;; init-functions.el ends here.