diff --git a/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php b/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php
index 75f2fe3c8..9b1f1aea6 100644
--- a/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php
+++ b/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php
@@ -163,7 +163,7 @@ class FieldBuilder
      */
     public function option($name, $value)
     {
-        if (!array_key_exists('options', $this->mapping)) {
+        if ( ! array_key_exists('options', $this->mapping)) {
             $this->mapping['options'] = array();
         }
         $this->mapping['options'][$name] = $value;