Index: uspace/lib/ui/src/wdecor.c
===================================================================
--- uspace/lib/ui/src/wdecor.c	(revision 5df257077a2eb3d939122d95f8fcecad4b07ff62)
+++ uspace/lib/ui/src/wdecor.c	(revision e2b47b3c379b8e487a57912a8439271121e2d00b)
@@ -1369,5 +1369,5 @@
 	fmt.valign = gfx_valign_top;
 
-	rc = gfx_puttext(&pbutton->rect.p0, &fmt, "[\u25a0]");
+	rc = gfx_puttext(&pbutton->rect.p0, &fmt, "[X]");
 	if (rc != EOK)
 		return rc;