diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
index 897f71de0..4dc5c7557 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
@@ -2725,7 +2725,7 @@ class ClassMetadataInfo implements ClassMetadata
             // Association defined as Id field
             $joinColumns            = $this->associationMappings[$idProperty]['joinColumns'];
             $assocQuotedColumnNames = array_map(
-                function ($joinColumn) {
+                function ($joinColumn) use ($platform) {
                     return isset($joinColumn['quoted'])
                         ? $platform->quoteIdentifier($joinColumn['name'])
                         : $joinColumn['name'];