diff --git a/src/Silex/Provider/RememberMeServiceProvider.php b/src/Silex/Provider/RememberMeServiceProvider.php
index 99afd028a..3301f329d 100644
--- a/src/Silex/Provider/RememberMeServiceProvider.php
+++ b/src/Silex/Provider/RememberMeServiceProvider.php
@@ -28,11 +28,11 @@ class RememberMeServiceProvider implements ServiceProviderInterface
 {
     public function register(Application $app)
     {
-        $app['security.remember_me.response_listener'] = $app->share(function() {
+        $app['security.remember_me.response_listener'] = $app->share(function () {
             return new ResponseListener();
         });
 
-        $app['security.authentication_listener.factory.remember_me'] = $app->protect(function($name, $options) use ($app) {
+        $app['security.authentication_listener.factory.remember_me'] = $app->protect(function ($name, $options) use ($app) {
             if (empty($options['key'])) {
                 $options['key'] = $name;
             }
@@ -57,7 +57,7 @@ public function register(Application $app)
             );
         });
 
-        $app['security.remember_me.service._proto'] = $app->protect(function($providerKey, $options) use ($app) {
+        $app['security.remember_me.service._proto'] = $app->protect(function ($providerKey, $options) use ($app) {
             return $app->share(function () use ($providerKey, $options, $app) {
                 $options = array_replace(array(
                     'name'                  => 'REMEMBERME',
diff --git a/src/Silex/Provider/SecurityServiceProvider.php b/src/Silex/Provider/SecurityServiceProvider.php
index b693a6b75..9b534b9a0 100644
--- a/src/Silex/Provider/SecurityServiceProvider.php
+++ b/src/Silex/Provider/SecurityServiceProvider.php
@@ -131,7 +131,7 @@ public function register(Application $app)
                 $entryPoint = 'form';
             }
 
-            $app['security.authentication_listener.factory.'.$type] = $app->protect(function($name, $options) use ($type, $app, $entryPoint) {
+            $app['security.authentication_listener.factory.'.$type] = $app->protect(function ($name, $options) use ($type, $app, $entryPoint) {
                 if ($entryPoint && !isset($app['security.entry_point.'.$name.'.'.$entryPoint])) {
                     $app['security.entry_point.'.$name.'.'.$entryPoint] = $app['security.entry_point.'.$entryPoint.'._proto']($name, $options);
                 }
diff --git a/src/Silex/Provider/SessionServiceProvider.php b/src/Silex/Provider/SessionServiceProvider.php
index d97039110..09bb733a2 100644
--- a/src/Silex/Provider/SessionServiceProvider.php
+++ b/src/Silex/Provider/SessionServiceProvider.php
@@ -62,7 +62,7 @@ public function register(Application $app)
             );
         });
 
-        $app['session.storage.test'] = $app->share(function() {
+        $app['session.storage.test'] = $app->share(function () {
             return new MockFileSessionStorage();
         });
 
diff --git a/src/Silex/Provider/ValidatorServiceProvider.php b/src/Silex/Provider/ValidatorServiceProvider.php
index a82bdef3a..79d607a2a 100644
--- a/src/Silex/Provider/ValidatorServiceProvider.php
+++ b/src/Silex/Provider/ValidatorServiceProvider.php
@@ -47,7 +47,7 @@ public function register(Application $app)
             return new ClassMetadataFactory(new StaticMethodLoader());
         });
 
-        $app['validator.validator_factory'] = $app->share(function() use ($app) {
+        $app['validator.validator_factory'] = $app->share(function () use ($app) {
             $validators = isset($app['validator.validator_service_ids']) ? $app['validator.validator_service_ids'] : array();
 
             return new ConstraintValidatorFactory($app, $validators);