diff --git a/DependencyInjection/Compiler/AddProviderCompilerPass.php b/DependencyInjection/Compiler/AddProviderCompilerPass.php
index e9533d8d9..3c8fe277a 100644
--- a/DependencyInjection/Compiler/AddProviderCompilerPass.php
+++ b/DependencyInjection/Compiler/AddProviderCompilerPass.php
@@ -32,14 +32,10 @@ public function process(ContainerBuilder $container)
         $this->attachArguments($container, $settings);
         $this->attachProviders($container);
 
+        $format = $container->getParameter('sonata.media.admin_format');
+
         foreach ($container->findTaggedServiceIds('sonata.media.provider') as $id => $attributes) {
-            $container->getDefinition($id)->addMethodCall('addFormat', array('admin', array(
-                'quality'       => 90,
-                'width'         => 200,
-                'format'        => 'jpg',
-                'height'        => false,
-                'constraint'    => true,
-            )));
+            $container->getDefinition($id)->addMethodCall('addFormat', array('admin', $format));
         }
     }
 
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index d3afbe767..eab8f9ef5 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -34,6 +34,17 @@ public function getConfigTreeBuilder()
             ->children()
                 ->scalarNode('db_driver')->isRequired()->end()
                 ->scalarNode('default_context')->isRequired()->end()
+                ->arrayNode('admin_format')
+                    ->info('Configures the thumbnail preview for the admin')
+                    ->addDefaultsIfNotSet()
+                    ->children()
+                        ->scalarNode('width')->defaultValue(200)->end()
+                        ->scalarNode('height')->defaultValue(false)->end()
+                        ->scalarNode('quality')->defaultValue(90)->end()
+                        ->scalarNode('format')->defaultValue('jpg')->end()
+                        ->scalarNode('constraint')->defaultValue(true)->end()
+                    ->end()
+                ->end()
             ->end()
         ;
 
diff --git a/DependencyInjection/SonataMediaExtension.php b/DependencyInjection/SonataMediaExtension.php
index 0c07602b0..d48893f3c 100644
--- a/DependencyInjection/SonataMediaExtension.php
+++ b/DependencyInjection/SonataMediaExtension.php
@@ -110,6 +110,8 @@ public function load(array $configs, ContainerBuilder $container)
             $pool->addMethodCall('addContext', array($name, $settings['providers'], $formats, $settings['download']));
         }
 
+        $container->setParameter('sonata.media.admin_format', $config['admin_format']);
+
         $strategies = array_unique($strategies);
 
         foreach ($strategies as $strategyId) {
diff --git a/Resources/doc/reference/advanced_configuration.rst b/Resources/doc/reference/advanced_configuration.rst
index 2b25dfebe..a909a5688 100644
--- a/Resources/doc/reference/advanced_configuration.rst
+++ b/Resources/doc/reference/advanced_configuration.rst
@@ -14,6 +14,7 @@ Full configuration options:
             category:           Application\Sonata\ClassificationBundle\Entity\Category
 
         default_context: default
+        admin_format:   { width: 200 , quality: 90, format: 'jpg'}
         contexts:
             default:  # the default context is mandatory
                 download:
diff --git a/Tests/DependencyInjection/ConfigurationTest.php b/Tests/DependencyInjection/ConfigurationTest.php
new file mode 100644
index 000000000..99da8842c
--- /dev/null
+++ b/Tests/DependencyInjection/ConfigurationTest.php
@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Sonata Project package.
+ *
+ * (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Sonata\MediaBundle\Tests;
+
+use Sonata\MediaBundle\DependencyInjection\Configuration;
+use Symfony\Component\Config\Definition\Processor;
+
+class ConfigurationTest extends \PHPUnit_Framework_TestCase
+{
+    public function testAdminFormat()
+    {
+        $processor = new Processor();
+
+        $config = $processor->processConfiguration(new Configuration(), array(
+            array(
+                'db_driver'       => 'foo',
+                'default_context' => 'default',
+            ),
+        ));
+
+        $this->assertNotNull($config['admin_format']);
+        $this->assertSame(200, $config['admin_format']['width']);
+        $this->assertSame(false, $config['admin_format']['height']);
+        $this->assertSame(90, $config['admin_format']['quality']);
+        $this->assertSame('jpg', $config['admin_format']['format']);
+        $this->assertSame(true, $config['admin_format']['constraint']);
+    }
+}