diff --git a/lib/Doctrine/ORM/Tools/ToolsException.php b/lib/Doctrine/ORM/Tools/ToolsException.php
index db13d862a..f7ed87105 100644
--- a/lib/Doctrine/ORM/Tools/ToolsException.php
+++ b/lib/Doctrine/ORM/Tools/ToolsException.php
@@ -2,8 +2,12 @@
 
 namespace Doctrine\ORM\Tools;
 
-class ToolsException extends ORMException {
-    public static function couldNotMapDoctrine1Type($type) {
+use Doctrine\ORM\ORMException;
+
+class ToolsException extends ORMException
+{
+    public static function couldNotMapDoctrine1Type($type)
+    {
         return new self("Could not map doctrine 1 type '$type'!");
     }
 }
\ No newline at end of file