diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
index 4dc5c7557..96271c52f 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
@@ -1479,6 +1479,8 @@ class ClassMetadataInfo implements ClassMetadata
                         'onDelete' => 'CASCADE'));
             }
 
+            $mapping['joinTableColumns'] = array();
+
             foreach ($mapping['joinTable']['joinColumns'] as &$joinColumn) {
                 if (empty($joinColumn['name'])) {
                     $joinColumn['name'] = $this->namingStrategy->joinKeyColumnName($mapping['sourceEntity'], $joinColumn['referencedColumnName']);
diff --git a/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php b/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php
index 57ff4cf05..edbaa4568 100644
--- a/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php
+++ b/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php
@@ -74,6 +74,7 @@ class ResolveTargetEntityListener
         $newMapping = $this->resolveTargetEntities[$mapping['targetEntity']];
         $newMapping = array_replace_recursive($mapping, $newMapping);
         $newMapping['fieldName'] = $mapping['fieldName'];
+
         unset($classMetadata->associationMappings[$mapping['fieldName']]);
 
         switch ($mapping['type']) {
diff --git a/tests/Doctrine/Tests/ORM/Tools/ResolveTargetEntityListenerTest.php b/tests/Doctrine/Tests/ORM/Tools/ResolveTargetEntityListenerTest.php
index 3cb627f07..66b3ac43e 100644
--- a/tests/Doctrine/Tests/ORM/Tools/ResolveTargetEntityListenerTest.php
+++ b/tests/Doctrine/Tests/ORM/Tools/ResolveTargetEntityListenerTest.php
@@ -60,6 +60,31 @@ class ResolveTargetEntityListenerTest extends \Doctrine\Tests\OrmTestCase
         $this->assertSame('Doctrine\Tests\ORM\Tools\ResolveTargetEntity', $meta['oneToMany']['targetEntity']);
         $this->assertSame('Doctrine\Tests\ORM\Tools\TargetEntity', $meta['oneToOne']['targetEntity']);
     }
+
+    /**
+     * @group DDC-2109
+     */
+    public function testAssertTableColumnsAreNotAddedInManyToMany()
+    {
+        $evm = $this->em->getEventManager();
+        $this->listener->addResolveTargetEntity(
+            'Doctrine\Tests\ORM\Tools\ResolveTargetInterface',
+            'Doctrine\Tests\ORM\Tools\ResolveTargetEntity',
+            array()
+        );
+        $this->listener->addResolveTargetEntity(
+            'Doctrine\Tests\ORM\Tools\TargetInterface',
+            'Doctrine\Tests\ORM\Tools\TargetEntity',
+            array()
+        );
+
+        $evm->addEventListener(Events::loadClassMetadata, $this->listener);
+        $cm = $this->factory->getMetadataFor('Doctrine\Tests\ORM\Tools\ResolveTargetEntity');
+        $meta = $cm->associationMappings['manyToMany'];
+
+        $this->assertSame('Doctrine\Tests\ORM\Tools\TargetEntity', $meta['targetEntity']);
+        $this->assertEquals(array('resolvetargetentity_id', 'targetinterface_id'), $meta['joinTableColumns']);
+    }
 }
 
 interface ResolveTargetInterface