diff --git a/lib/Doctrine/ORM/Tools/EntityGenerator.php b/lib/Doctrine/ORM/Tools/EntityGenerator.php
index 1abd5a14c..1fe26e79e 100644
--- a/lib/Doctrine/ORM/Tools/EntityGenerator.php
+++ b/lib/Doctrine/ORM/Tools/EntityGenerator.php
@@ -1627,7 +1627,9 @@ public function __construct(<params>)
     {
         $lines = array();
         $lines[] = $this->spaces . '/**';
-        $lines[] = $this->spaces . ' * @var ' . $this->getType($fieldMapping['type']) . ($this->getNullableField($fieldMapping) ? '|' . $this->getNullableField($fieldMapping) : '');
+        $lines[] = $this->spaces . ' * @var '
+            . $this->getType($fieldMapping['type'])
+            . ($this->getNullableField($fieldMapping) ? '|null' : '');
 
         if ($this->generateAnnotations) {
             $lines[] = $this->spaces . ' *';