diff --git a/src/Symfony/Component/Validator/Constraints/MaxValidator.php b/src/Symfony/Component/Validator/Constraints/MaxValidator.php
index 90c9437b2f..18d8e8902e 100644
--- a/src/Symfony/Component/Validator/Constraints/MaxValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/MaxValidator.php
@@ -31,7 +31,7 @@ class MaxValidator extends ConstraintValidator
      */
     public function validate($value, Constraint $constraint)
     {
-        if (null === $value) {
+        if (null === $value || '' === $value) {
             return;
         }
 
diff --git a/src/Symfony/Component/Validator/Constraints/MinValidator.php b/src/Symfony/Component/Validator/Constraints/MinValidator.php
index 4ffe43ab63..a91d873864 100644
--- a/src/Symfony/Component/Validator/Constraints/MinValidator.php
+++ b/src/Symfony/Component/Validator/Constraints/MinValidator.php
@@ -31,7 +31,7 @@ class MinValidator extends ConstraintValidator
      */
     public function validate($value, Constraint $constraint)
     {
-        if (null === $value) {
+        if (null === $value || '' === $value) {
             return;
         }
 
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/MaxValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/MaxValidatorTest.php
index f86b5109d8..3ee95eeb69 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/MaxValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/MaxValidatorTest.php
@@ -40,6 +40,14 @@ class MaxValidatorTest extends \PHPUnit_Framework_TestCase
         $this->validator->validate(null, new Max(array('limit' => 10)));
     }
 
+    public function testEmptyStringIsValid()
+    {
+        $this->context->expects($this->never())
+            ->method('addViolation');
+
+        $this->validator->validate('', new Max(array('limit' => 10)));
+    }
+
     /**
      * @dataProvider getValidValues
      */
diff --git a/src/Symfony/Component/Validator/Tests/Constraints/MinValidatorTest.php b/src/Symfony/Component/Validator/Tests/Constraints/MinValidatorTest.php
index fb103ce983..f760190b2d 100644
--- a/src/Symfony/Component/Validator/Tests/Constraints/MinValidatorTest.php
+++ b/src/Symfony/Component/Validator/Tests/Constraints/MinValidatorTest.php
@@ -34,6 +34,14 @@ class MinValidatorTest extends \PHPUnit_Framework_TestCase
         $this->validator->validate(null, new Min(array('limit' => 10)));
     }
 
+    public function testEmptyStringIsValid()
+    {
+        $this->context->expects($this->never())
+            ->method('addViolation');
+
+        $this->validator->validate('', new Min(array('limit' => 10)));
+    }
+
     /**
      * @dataProvider getValidValues
      */