diff --git a/src/validator-docs/Rules/Cpf.php b/src/validator-docs/Rules/Cpf.php
index 0a28d36..1175a2a 100644
--- a/src/validator-docs/Rules/Cpf.php
+++ b/src/validator-docs/Rules/Cpf.php
@@ -4,13 +4,27 @@
 
 namespace geekcom\ValidatorDocs\Rules;
 
+use geekcom\ValidatorDocs\ValidatorFormats;
+
 use function preg_match;
 use function mb_strlen;
 
 final class Cpf extends Sanitization
 {
+    protected function validateCPFFormat(string $value)
+    {
+        if (!empty($value)) {
+            return (new ValidatorFormats())->execute($value, 'cpf');
+        }
+    }
+
     public function validateCpf($attribute, $value): bool
     {
+
+        if (!$this->validateCPFFormat($value)) {
+            return false;
+        }
+
         $c = $this->sanitize($value);
 
         if (mb_strlen($c) != 11 || preg_match("/^{$c[0]}{11}$/", $c)) {
diff --git a/src/validator-docs/Validator.php b/src/validator-docs/Validator.php
index 84a4dd0..efb0a90 100644
--- a/src/validator-docs/Validator.php
+++ b/src/validator-docs/Validator.php
@@ -30,19 +30,10 @@ public function __construct(
         parent::__construct($translator, $data, $rules, $messages, $customAttributes);
     }
 
-    protected function validateFormat($value, $document, $attribute = null)
-    {
-        if (!empty($value)) {
-            return (new ValidatorFormats())->execute($value, $document);
-        }
-    }
-
     protected function validateCpf($attribute, $value): bool
     {
         $cpf = new Cpf();
 
-        $this->validateFormat($value, 'cpf');
-
         return $cpf->validateCpf($attribute, $value);
     }
 
diff --git a/tests/TestValidator.php b/tests/TestValidator.php
index 2a870b4..7506901 100644
--- a/tests/TestValidator.php
+++ b/tests/TestValidator.php
@@ -19,9 +19,16 @@ public function cpf()
             ['errado' => 'cpf']
         );
 
+        $incorrectWithAlpha = Validator::make(
+            ['errado' => '094.050.986-59ABCDEF'],
+            ['errado' => 'cpf']
+        );
+
         $this->assertTrue($correct->passes());
 
         $this->assertTrue($incorrect->fails());
+
+        $this->assertTrue($incorrectWithAlpha->fails());
     }
 
     /** @test **/