diff --git a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
index 28cac813e..77a6e32b9 100644
--- a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
+++ b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
@@ -84,7 +84,7 @@ class BasicEntityPersister
      */
     static private $comparisonMap = array(
         Comparison::EQ  => '= %s',
-        Comparison::IS  => '= %s',
+        Comparison::IS  => 'IS %s',
         Comparison::NEQ => '!= %s',
         Comparison::GT  => '> %s',
         Comparison::GTE => '>= %s',
diff --git a/tests/Doctrine/Tests/ORM/Persisters/BasicEntityPersisterTypeValueSqlTest.php b/tests/Doctrine/Tests/ORM/Persisters/BasicEntityPersisterTypeValueSqlTest.php
index fa1d7530a..f8ec2bb0d 100644
--- a/tests/Doctrine/Tests/ORM/Persisters/BasicEntityPersisterTypeValueSqlTest.php
+++ b/tests/Doctrine/Tests/ORM/Persisters/BasicEntityPersisterTypeValueSqlTest.php
@@ -88,4 +88,13 @@ class BasicEntityPersisterTypeValueSqlTest extends \Doctrine\Tests\OrmTestCase
 
         $this->assertEquals('t0."simple-entity-id" AS simpleentityid1, t0."simple-entity-value" AS simpleentityvalue2', $method->invoke($persister));
     }
+
+    /**
+     * @group DDC-2073
+     */
+    public function testSelectConditionStatementIsNull()
+    {
+        $statement = $this->_persister->getSelectConditionStatementSQL('test', null, array(), Comparison::IS);
+        $this->assertEquals('test IS ?', $statement);
+    }
 }