diff --git a/src/Mine/SeekerBundle/Rpc/MineseekerRpc.php b/src/Mine/SeekerBundle/Rpc/MineseekerRpc.php
index 319bb45..5987288 100644
--- a/src/Mine/SeekerBundle/Rpc/MineseekerRpc.php
+++ b/src/Mine/SeekerBundle/Rpc/MineseekerRpc.php
@@ -2,9 +2,9 @@
 
 namespace Mine\SeekerBundle\Rpc;
 
+use Doctrine\DBAL\Driver\PDOException;
 use Doctrine\ORM\EntityManager;
 use Mine\SeekerBundle\Entity\Grid;
-use Mine\SeekerBundle\Entity\GridCol;
 use Mine\SeekerBundle\Entity\GridRow;
 use Mine\SeekerBundle\Entity\PlayedGame;
 use Ratchet\ConnectionInterface;