diff --git a/src/EzPlatformEncoreBundle/bundle/Command/CompileAssetsCommand.php b/src/EzPlatformEncoreBundle/bundle/Command/CompileAssetsCommand.php
index 3ba4192..fcad159 100644
--- a/src/EzPlatformEncoreBundle/bundle/Command/CompileAssetsCommand.php
+++ b/src/EzPlatformEncoreBundle/bundle/Command/CompileAssetsCommand.php
@@ -9,6 +9,7 @@
 namespace EzSystems\EzPlatformEncoreBundle\Command;
 
 use InvalidArgumentException;
+use RuntimeException;
 use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;