diff --git a/lib/Doctrine/ORM/EntityManager.php b/lib/Doctrine/ORM/EntityManager.php
index cdd178baf..2839099fc 100644
--- a/lib/Doctrine/ORM/EntityManager.php
+++ b/lib/Doctrine/ORM/EntityManager.php
@@ -355,7 +355,7 @@ class EntityManager implements ObjectManager
 
         // Check identity map first, if its already in there just return it.
         if ($entity = $this->unitOfWork->tryGetById($identifier, $class->rootEntityName)) {
-            return $entity;
+            return ($entity instanceof $class->name) ? $entity : null;
         }
         if ($class->subClasses) {
             $entity = $this->find($entityName, $identifier);
@@ -395,7 +395,7 @@ class EntityManager implements ObjectManager
 
         // Check identity map first, if its already in there just return it.
         if ($entity = $this->unitOfWork->tryGetById($identifier, $class->rootEntityName)) {
-            return $entity;
+            return ($entity instanceof $class->name) ? $entity : null;
         }
         if ( ! is_array($identifier)) {
             $identifier = array($class->identifier[0] => $identifier);
diff --git a/lib/Doctrine/ORM/EntityRepository.php b/lib/Doctrine/ORM/EntityRepository.php
index 60fc91760..a92ce7355 100644
--- a/lib/Doctrine/ORM/EntityRepository.php
+++ b/lib/Doctrine/ORM/EntityRepository.php
@@ -98,6 +98,10 @@ class EntityRepository implements ObjectRepository
     {
         // Check identity map first
         if ($entity = $this->_em->getUnitOfWork()->tryGetById($id, $this->_class->rootEntityName)) {
+            if (!($entity instanceof $this->_class->name)) {
+                return null;
+            }
+            
             if ($lockMode != LockMode::NONE) {
                 $this->_em->lock($entity, $lockMode, $lockVersion);
             }
diff --git a/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC1041Test.php b/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC1041Test.php
new file mode 100644
index 000000000..cf5a5f223
--- /dev/null
+++ b/tests/Doctrine/Tests/ORM/Functional/Ticket/DDC1041Test.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Doctrine\Tests\ORM\Functional\Ticket;
+
+use Doctrine\Common\Collections\ArrayCollection;
+require_once __DIR__ . '/../../../TestInit.php';
+
+/**
+ * @group DDC-1041
+ */
+class DDC1041Test extends \Doctrine\Tests\OrmFunctionalTestCase
+{
+    public function setUp()
+    {
+        $this->useModelSet('company');
+        parent::setUp();
+    }
+    
+    public function testGrabWrongSubtypeReturnsNull()
+    {
+        $fix = new \Doctrine\Tests\Models\Company\CompanyFixContract();
+        $fix->setFixPrice(2000);
+        
+        $this->_em->persist($fix);
+        $this->_em->flush();
+        
+        $id = $fix->getId();
+        
+        $this->assertNull($this->_em->find('Doctrine\Tests\Models\Company\CompanyFlexContract', $id));
+        $this->assertNull($this->_em->getReference('Doctrine\Tests\Models\Company\CompanyFlexContract', $id));
+        $this->assertNull($this->_em->getPartialReference('Doctrine\Tests\Models\Company\CompanyFlexContract', $id));
+    }
+}
\ No newline at end of file