diff --git a/index.php b/index.php
index 6ce0350..54ac906 100644
--- a/index.php
+++ b/index.php
@@ -23,13 +23,10 @@
             </header>
         </div>
         <?php
-        $page = 1;
+        $page = filter_input(INPUT_GET, "pg", FILTER_VALIDATE_INT) ?: 1;
         $comps = ["inicio.php", "escrever.php"];
-        if (isset($_GET["pg"]) and is_numeric($_GET["pg"])) {
-            $page = $_GET["pg"];
-        }
-
         $file = "componentes/" . $comps[$page - 1];
+
         switch (file_exists($file)) {
             case true:
                 require_once $file;