diff --git a/src/Symfony/Component/DependencyInjection/Loader/FileLoader.php b/src/Symfony/Component/DependencyInjection/Loader/FileLoader.php
index 1910ec66a25c6..40cf8f9ee4cae 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/FileLoader.php
+++ b/src/Symfony/Component/DependencyInjection/Loader/FileLoader.php
@@ -47,8 +47,9 @@ public function __construct(ContainerBuilder $container, FileLocatorInterface $l
      * @param Definition $prototype A definition to use as template
      * @param string     $namespace The namespace prefix of classes in the scanned directory
      * @param string     $resource  The directory to look for classes, glob-patterns allowed
+     * @param string     $exclude   A globed path of files to exclude
      */
-    public function registerClasses(Definition $prototype, $namespace, $resource)
+    public function registerClasses(Definition $prototype, $namespace, $resource, $exclude = null)
     {
         if ('\\' !== substr($namespace, -1)) {
             throw new InvalidArgumentException(sprintf('Namespace prefix must end with a "\\": %s.', $namespace));
@@ -57,7 +58,7 @@ public function registerClasses(Definition $prototype, $namespace, $resource)
             throw new InvalidArgumentException(sprintf('Namespace is not a valid PSR-4 prefix: %s.', $namespace));
         }
 
-        $classes = $this->findClasses($namespace, $resource);
+        $classes = $this->findClasses($namespace, $resource, $exclude);
         // prepare for deep cloning
         $prototype = serialize($prototype);
 
@@ -84,9 +85,24 @@ protected function setDefinition($id, Definition $definition)
         }
     }
 
-    private function findClasses($namespace, $pattern)
+    private function findClasses($namespace, $pattern, $excludePattern)
     {
         $parameterBag = $this->container->getParameterBag();
+
+        $excludePaths = array();
+        $excludePrefix = null;
+        if ($excludePattern) {
+            $excludePattern = $parameterBag->unescapeValue($parameterBag->resolveValue($excludePattern));
+            foreach ($this->glob($excludePattern, true, $resource) as $path => $info) {
+                if (null === $excludePrefix) {
+                    $excludePrefix = $resource->getPrefix();
+                }
+
+                // normalize Windows slashes
+                $excludePaths[str_replace('\\', '/', $path)] = true;
+            }
+        }
+
         $pattern = $parameterBag->unescapeValue($parameterBag->resolveValue($pattern));
         $classes = array();
         $extRegexp = defined('HHVM_VERSION') ? '/\\.(?:php|hh)$/' : '/\\.php$/';
@@ -94,6 +110,14 @@ private function findClasses($namespace, $pattern)
         foreach ($this->glob($pattern, true, $resource) as $path => $info) {
             if (null === $prefixLen) {
                 $prefixLen = strlen($resource->getPrefix());
+
+                if ($excludePrefix && strpos($excludePrefix, $resource->getPrefix()) !== 0) {
+                    throw new InvalidArgumentException(sprintf('Invalid "exclude" pattern when importing classes for "%s": make sure your "exclude" pattern (%s) is a subset of the "resource" pattern (%s)', $namespace, $excludePattern, $pattern));
+                }
+            }
+
+            if (isset($excludePaths[str_replace('\\', '/', $path)])) {
+                continue;
             }
 
             if (!preg_match($extRegexp, $path, $m) || !$info->isReadable()) {
diff --git a/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php b/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
index 3ccbdbc79155e..79c8fbf9677ab 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
+++ b/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php
@@ -143,7 +143,7 @@ private function parseDefinitions(\DOMDocument $xml, $file, $defaults)
         foreach ($services as $service) {
             if (null !== $definition = $this->parseDefinition($service, $file, $defaults)) {
                 if ('prototype' === $service->tagName) {
-                    $this->registerClasses($definition, (string) $service->getAttribute('namespace'), (string) $service->getAttribute('resource'));
+                    $this->registerClasses($definition, (string) $service->getAttribute('namespace'), (string) $service->getAttribute('resource'), (string) $service->getAttribute('exclude'));
                 } else {
                     $this->setDefinition((string) $service->getAttribute('id'), $definition);
                 }
diff --git a/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php b/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php
index 3214f4e023cb6..c3e697c1b5207 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php
+++ b/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php
@@ -61,6 +61,7 @@ class YamlFileLoader extends FileLoader
 
     private static $prototypeKeywords = array(
         'resource' => 'resource',
+        'exclude' => 'exclude',
         'parent' => 'parent',
         'shared' => 'shared',
         'lazy' => 'lazy',
@@ -528,7 +529,8 @@ private function parseDefinition($id, $service, $file, array $defaults)
             if (!is_string($service['resource'])) {
                 throw new InvalidArgumentException(sprintf('A "resource" attribute must be of type string for service "%s" in %s. Check your YAML syntax.', $id, $file));
             }
-            $this->registerClasses($definition, $id, $service['resource']);
+            $exclude = isset($service['exclude']) ? $service['exclude'] : null;
+            $this->registerClasses($definition, $id, $service['resource'], $exclude);
         } else {
             $this->setDefinition($id, $definition);
         }
diff --git a/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd b/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd
index 43ea65a2d8577..2de786bdb7cba 100644
--- a/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd
+++ b/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd
@@ -161,6 +161,7 @@
     </xsd:choice>
     <xsd:attribute name="namespace" type="xsd:string" use="required" />
     <xsd:attribute name="resource" type="xsd:string" use="required" />
+    <xsd:attribute name="exclude" type="xsd:string" />
     <xsd:attribute name="shared" type="boolean" />
     <xsd:attribute name="public" type="boolean" />
     <xsd:attribute name="lazy" type="boolean" />
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/Prototype/OtherDir/AnotherSub/DeeperBaz.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/Prototype/OtherDir/AnotherSub/DeeperBaz.php
new file mode 100644
index 0000000000000..37f0e7ac45399
--- /dev/null
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/Prototype/OtherDir/AnotherSub/DeeperBaz.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\OtherDir\AnotherSub;
+
+class DeeperBaz
+{
+}
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/Prototype/OtherDir/Baz.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/Prototype/OtherDir/Baz.php
new file mode 100644
index 0000000000000..c25742704c27e
--- /dev/null
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/Prototype/OtherDir/Baz.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\OtherDir;
+
+class Baz
+{
+}
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/xml/services_prototype.xml b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/xml/services_prototype.xml
index 47564b16146a3..333e71ce57d5a 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/xml/services_prototype.xml
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/xml/services_prototype.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <container xmlns="http://symfony.com/schema/dic/services" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
   <services>
-      <prototype namespace="Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\" resource="../Prototype/*" />
+      <prototype namespace="Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\" resource="../Prototype/*" exclude="../Prototype/{OtherDir}" />
   </services>
 </container>
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/yaml/services_prototype.yml b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/yaml/services_prototype.yml
index 7113c9d957505..fb47bcb7e7a52 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/yaml/services_prototype.yml
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/yaml/services_prototype.yml
@@ -1,3 +1,4 @@
 services:
     Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\:
         resource: ../Prototype
+        exclude: '../Prototype/{OtherDir}'
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Loader/FileLoaderTest.php b/src/Symfony/Component/DependencyInjection/Tests/Loader/FileLoaderTest.php
index b0245c3556388..6544145c4e0e0 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Loader/FileLoaderTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Loader/FileLoaderTest.php
@@ -16,12 +16,15 @@
 use Symfony\Component\Config\Loader\LoaderResolver;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
 use Symfony\Component\DependencyInjection\Loader\FileLoader;
 use Symfony\Component\DependencyInjection\Loader\IniFileLoader;
 use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
 use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\OtherDir\AnotherSub\DeeperBaz;
+use Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\OtherDir\Baz;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\Sub\Bar;
 
 class FileLoaderTest extends TestCase
@@ -90,6 +93,26 @@ public function testRegisterClasses()
         );
     }
 
+    public function testRegisterClassesWithExclude()
+    {
+        $container = new ContainerBuilder();
+        $container->setParameter('other_dir', 'OtherDir');
+        $loader = new TestFileLoader($container, new FileLocator(self::$fixturesPath.'/Fixtures'));
+
+        $loader->registerClasses(
+            new Definition(),
+            'Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\\',
+            'Prototype/*',
+            // load everything, except OtherDir/AnotherSub & Foo.php
+            'Prototype/{%other_dir%/AnotherSub,Foo.php}'
+        );
+
+        $this->assertTrue($container->has(Bar::class));
+        $this->assertTrue($container->has(Baz::class));
+        $this->assertFalse($container->has(Foo::class));
+        $this->assertFalse($container->has(DeeperBaz::class));
+    }
+
     /**
      * @expectedException \Symfony\Component\DependencyInjection\Exception\InvalidArgumentException
      * @expectedExceptionMessageRegExp /Expected to find class "Symfony\\Component\\DependencyInjection\\Tests\\Fixtures\\Prototype\\Bar" in file ".+" while importing services from resource "Prototype\/Sub\/\*", but it was not found\! Check the namespace prefix used with the resource/
@@ -102,6 +125,35 @@ public function testRegisterClassesWithBadPrefix()
         // the Sub is missing from namespace prefix
         $loader->registerClasses(new Definition(), 'Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\\', 'Prototype/Sub/*');
     }
+
+    /**
+     * @dataProvider getIncompatibleExcludeTests
+     */
+    public function testRegisterClassesWithIncompatibleExclude($resourcePattern, $excludePattern)
+    {
+        $container = new ContainerBuilder();
+        $loader = new TestFileLoader($container, new FileLocator(self::$fixturesPath.'/Fixtures'));
+
+        try {
+            $loader->registerClasses(
+                new Definition(),
+                'Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\\',
+                $resourcePattern,
+                $excludePattern
+            );
+        } catch (InvalidArgumentException $e) {
+            $this->assertEquals(
+                sprintf('Invalid "exclude" pattern when importing classes for "Symfony\Component\DependencyInjection\Tests\Fixtures\Prototype\": make sure your "exclude" pattern (%s) is a subset of the "resource" pattern (%s)', $excludePattern, $resourcePattern),
+                $e->getMessage()
+            );
+        }
+    }
+
+    public function getIncompatibleExcludeTests()
+    {
+        yield array('Prototype/*', 'yaml/*', false);
+        yield array('Prototype/OtherDir/*', 'Prototype/*', false);
+    }
 }
 
 class TestFileLoader extends FileLoader

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