diff --git a/screen.c b/screen.c
index e15aa46..b0c38b8 100644
--- a/screen.c
+++ b/screen.c
@@ -133,6 +133,7 @@ int screen() {
     keypad(win, TRUE); //para ter as flechas
     refresh();
 
+    /* dibuxa caixa e cuadra */
     box(win, 0, 0);
     int* esquinasCaja = cuadra(win, width, height);
     wrefresh(win);