diff --git a/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php b/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php
index 920899b11..9be19eb40 100644
--- a/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php
+++ b/lib/Doctrine/ORM/Mapping/Builder/FieldBuilder.php
@@ -167,18 +167,6 @@ class FieldBuilder
         return $this;
     }
 
-    /**
-     * Sets unsigned option.
-     *
-     * @param bool $flag
-     *
-     * @return FieldBuilder
-     */
-    public function unsigned($flag = true)
-    {
-        return $this->option('unsigned', (bool)$flag);
-    }
-
     /**
      * @param string $strategy
      *
diff --git a/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataBuilderTest.php b/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataBuilderTest.php
index cb60b92b4..abdddb737 100644
--- a/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataBuilderTest.php
+++ b/tests/Doctrine/Tests/ORM/Mapping/ClassMetadataBuilderTest.php
@@ -176,7 +176,7 @@ class ClassMetadataBuilderTest extends \Doctrine\Tests\OrmTestCase
 
     public function testCreateUnsignedOptionField()
     {
-        $this->builder->createField('state', 'integer')->unsigned()->build();
+        $this->builder->createField('state', 'integer')->option('unsigned', true)->build();
 
         $this->assertEquals(array('fieldName' => 'state', 'type' => 'integer', 'options' => array('unsigned' => true), 'columnName' => 'state'), $this->cm->fieldMappings['state']);
     }