diff --git a/src/Bridge/Latte/SlugifyHelper.php b/src/Bridge/Latte/SlugifyHelper.php
index 0e8dce4e..53924912 100644
--- a/src/Bridge/Latte/SlugifyHelper.php
+++ b/src/Bridge/Latte/SlugifyHelper.php
@@ -18,6 +18,9 @@ class SlugifyHelper
     /** @var SlugifyInterface */
     private $slugify;
 
+	/**
+	 * @codeCoverageIgnore
+	 */
     public function __construct(SlugifyInterface $slugify)
     {
         $this->slugify = $slugify;
diff --git a/src/Bridge/Nette/SlugifyExtension.php b/src/Bridge/Nette/SlugifyExtension.php
index c642a44c..c28c530a 100644
--- a/src/Bridge/Nette/SlugifyExtension.php
+++ b/src/Bridge/Nette/SlugifyExtension.php
@@ -24,7 +24,7 @@ public function loadConfiguration()
             ->setClass('Cocur\Slugify\SlugifyInterface')
             ->setFactory('Cocur\Slugify\Slugify');
 
-        $builder->addDefinition($this->prefix('helpers'))
+        $builder->addDefinition($this->prefix('helper'))
             ->setClass('Cocur\Slugify\Bridge\Latte\SlugifyHelper')
             ->setInject(false);
     }
@@ -35,7 +35,7 @@ public function beforeCompile()
 
         $self = $this;
         $registerToLatte = function(ServiceDefinition $def) use ($self) {
-            $def->addSetup('addFilter', array('slugify', array($self->prefix('@helpers'), 'slugify')));
+            $def->addSetup('addFilter', array('slugify', array($self->prefix('@helper'), 'slugify')));
         };
 
         $latteFactory = $builder->getByType('Nette\Bridges\ApplicationLatte\ILatteFactory') ?: 'nette.latteFactory';
diff --git a/tests/Bridge/Nette/SlugifyExtensionTest.php b/tests/Bridge/Nette/SlugifyExtensionTest.php
new file mode 100644
index 00000000..4cb6319c
--- /dev/null
+++ b/tests/Bridge/Nette/SlugifyExtensionTest.php
@@ -0,0 +1,137 @@
+<?php
+
+namespace Cocur\Slugify\Bridge\Nette;
+
+use Nette\Bridges\ApplicationDI\LatteExtension;
+use Nette\DI\Compiler;
+use \Mockery as m;
+
+
+/**
+ * SlugifyExtensionTest
+ *
+ * @category   test
+ * @package    cocur/slugify
+ * @subpackage bridge
+ * @author     Lukáš Unger <looky.msc@gmail.com>
+ * @license    http://www.opensource.org/licenses/MIT The MIT License
+ * @group      unit
+ */
+class SlugifyExtensionTest extends \PHPUnit_Framework_TestCase
+{
+
+    public function setUp()
+    {
+		$this->extension = new SlugifyExtension();
+    }
+
+    /**
+     * @test
+     * @covers Cocur\Slugify\Bridge\Nette\SlugifyExtension::loadConfiguration()
+     */
+    public function loadConfiguration()
+    {
+		$slugify = m::mock('Nette\DI\ServiceDefinition');
+		$slugify
+			->shouldReceive('setClass')
+			->with('Cocur\Slugify\SlugifyInterface')
+			->once()
+			->andReturn($slugify);
+		$slugify
+			->shouldReceive('setFactory')
+			->with('Cocur\Slugify\Slugify')
+			->once()
+			->andReturn($slugify);
+
+		$helper = m::mock('Nette\DI\ServiceDefinition');
+		$helper
+			->shouldReceive('setClass')
+			->with('Cocur\Slugify\Bridge\Latte\SlugifyHelper')
+			->once()
+			->andReturn($helper);
+		$helper
+			->shouldReceive('setInject')
+			->with(false)
+			->once()
+			->andReturn($helper);
+
+		$builder = m::mock('Nette\DI\ContainerBuilder');
+		$builder
+			->shouldReceive('addDefinition')
+			->with('slugify.slugify')
+			->once()
+			->andReturn($slugify);
+		$builder
+			->shouldReceive('addDefinition')
+			->with('slugify.helper')
+			->once()
+			->andReturn($helper);
+
+		$compiler = m::mock('Nette\DI\Compiler');
+		$compiler
+			->shouldReceive('getContainerBuilder')
+			->once()
+			->andReturn($builder);
+
+		$this->extension->setCompiler($compiler, 'slugify');
+		$this->extension->loadConfiguration();
+    }
+
+	/**
+     * @test
+     * @covers Cocur\Slugify\Bridge\Nette\SlugifyExtension::beforeCompile()
+     */
+    public function beforeCompile()
+    {
+		$latteFactory = m::mock('Nette\DI\ServiceDefinition');
+		$latteFactory
+			->shouldReceive('addSetup')
+			->with('addFilter', array('slugify', array('@slugify.helper', 'slugify')))
+			->once()
+			->andReturn($latteFactory);
+
+		$latte = m::mock('Nette\DI\ServiceDefinition');
+		$latte
+			->shouldReceive('addSetup')
+			->with('addFilter', array('slugify', array('@slugify.helper', 'slugify')))
+			->once()
+			->andReturn($latte);
+
+		$builder = m::mock('Nette\DI\ContainerBuilder');
+		$builder
+			->shouldReceive('getByType')
+			->with('Nette\Bridges\ApplicationLatte\ILatteFactory')
+			->once()
+			->andReturn('latte.latteFactory');
+		$builder
+			->shouldReceive('hasDefinition')
+			->with('latte.latteFactory')
+			->once()
+			->andReturn(TRUE);
+		$builder
+			->shouldReceive('getDefinition')
+			->with('latte.latteFactory')
+			->once()
+			->andReturn($latteFactory);
+		$builder
+			->shouldReceive('hasDefinition')
+			->with('nette.latte')
+			->once()
+			->andReturn(TRUE);
+		$builder
+			->shouldReceive('getDefinition')
+			->with('nette.latte')
+			->once()
+			->andReturn($latte);
+
+		$compiler = m::mock('Nette\DI\Compiler');
+		$compiler
+			->shouldReceive('getContainerBuilder')
+			->once()
+			->andReturn($builder);
+
+		$this->extension->setCompiler($compiler, 'slugify');
+		$this->extension->beforeCompile();
+    }
+
+}