diff --git a/src/Symfony/Component/Validator/Mapping/Loader/XmlFileLoader.php b/src/Symfony/Component/Validator/Mapping/Loader/XmlFileLoader.php
index 6b25f18817..a9ae396777 100644
--- a/src/Symfony/Component/Validator/Mapping/Loader/XmlFileLoader.php
+++ b/src/Symfony/Component/Validator/Mapping/Loader/XmlFileLoader.php
@@ -166,7 +166,10 @@ class XmlFileLoader extends FileLoader
                     $value = array();
                 }
             } else {
-                $value = trim($node);
+                $value = XmlUtils::phpize($node);
+                if (is_string($value)) {
+                    $value = trim($value);
+                }
             }
 
             $options[(string) $node['name']] = $value;
diff --git a/src/Symfony/Component/Validator/Tests/Mapping/Loader/XmlFileLoaderTest.php b/src/Symfony/Component/Validator/Tests/Mapping/Loader/XmlFileLoaderTest.php
index 22478e606d..741481c176 100644
--- a/src/Symfony/Component/Validator/Tests/Mapping/Loader/XmlFileLoaderTest.php
+++ b/src/Symfony/Component/Validator/Tests/Mapping/Loader/XmlFileLoaderTest.php
@@ -16,6 +16,7 @@ use Symfony\Component\Validator\Constraints\Collection;
 use Symfony\Component\Validator\Constraints\NotNull;
 use Symfony\Component\Validator\Constraints\Range;
 use Symfony\Component\Validator\Constraints\Choice;
+use Symfony\Component\Validator\Constraints\Regex;
 use Symfony\Component\Validator\Mapping\ClassMetadata;
 use Symfony\Component\Validator\Mapping\Loader\XmlFileLoader;
 use Symfony\Component\Validator\Tests\Fixtures\ConstraintA;
@@ -68,6 +69,22 @@ class XmlFileLoaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expected, $metadata);
     }
 
+    public function testLoadClassMetadataWithNonStrings()
+    {
+        $loader = new XmlFileLoader(__DIR__.'/constraint-mapping-non-strings.xml');
+        $metadata = new ClassMetadata('Symfony\Component\Validator\Tests\Fixtures\Entity');
+
+        $loader->loadClassMetadata($metadata);
+
+        $expected = new ClassMetadata('Symfony\Component\Validator\Tests\Fixtures\Entity');
+        $expected->addPropertyConstraint('firstName', new Regex(array('pattern' => '/^1/', 'match' => false)));
+
+        $properties = $metadata->getPropertyMetadata('firstName');
+        $constraints = $properties[0]->getConstraints();
+
+        $this->assertFalse($constraints[0]->match);
+    }
+
     public function testLoadGroupSequenceProvider()
     {
         $loader = new XmlFileLoader(__DIR__.'/constraint-mapping.xml');
diff --git a/src/Symfony/Component/Validator/Tests/Mapping/Loader/constraint-mapping-non-strings.xml b/src/Symfony/Component/Validator/Tests/Mapping/Loader/constraint-mapping-non-strings.xml
new file mode 100644
index 0000000000..dfd5edddc5
--- /dev/null
+++ b/src/Symfony/Component/Validator/Tests/Mapping/Loader/constraint-mapping-non-strings.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" ?>
+
+<constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping http://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">
+
+  <namespace prefix="custom">Symfony\Component\Validator\Tests\Fixtures\</namespace>
+
+  <class name="Symfony\Component\Validator\Tests\Fixtures\Entity">
+    <property name="firstName">
+      <!-- Constraint with a Boolean -->
+      <constraint name="Regex">
+          <option name="pattern">/^1/</option>
+          <option name="match">false</option>
+      </constraint>
+    </property>
+  </class>
+
+</constraint-mapping>
diff --git a/src/Symfony/Component/Validator/Tests/Mapping/Loader/constraint-mapping.xml b/src/Symfony/Component/Validator/Tests/Mapping/Loader/constraint-mapping.xml
index 946200ba11..dfac70d9cf 100644
--- a/src/Symfony/Component/Validator/Tests/Mapping/Loader/constraint-mapping.xml
+++ b/src/Symfony/Component/Validator/Tests/Mapping/Loader/constraint-mapping.xml
@@ -78,7 +78,7 @@
       <!-- Constraint with options -->
       <constraint name="Choice">
         <!-- Option with single value -->
-        <option name="message">Must be one of %choices%</option>
+        <option name="message"> Must be one of %choices% </option>
         <!-- Option with multiple values -->
         <option name="choices">
           <value>A</value>