diff --git a/lib/Doctrine/ORM/Tools/EntityGenerator.php b/lib/Doctrine/ORM/Tools/EntityGenerator.php
index 8a8880606..5bbaf280c 100644
--- a/lib/Doctrine/ORM/Tools/EntityGenerator.php
+++ b/lib/Doctrine/ORM/Tools/EntityGenerator.php
@@ -953,7 +953,7 @@ public function __construct()
     protected function generateDiscriminatorColumnAnnotation($metadata)
     {
         if ($metadata->inheritanceType != ClassMetadataInfo::INHERITANCE_TYPE_NONE) {
-            $discrColumn = $metadata->discriminatorValue;
+            $discrColumn = $metadata->discriminatorColumn;
             $columnDefinition = 'name="' . $discrColumn['name']
                 . '", type="' . $discrColumn['type']
                 . '", length=' . $discrColumn['length'];