diff --git a/src/Symfony/Component/Form/Form.php b/src/Symfony/Component/Form/Form.php
index 0b9cdcf1bb76c..59638e3300be9 100644
--- a/src/Symfony/Component/Form/Form.php
+++ b/src/Symfony/Component/Form/Form.php
@@ -294,6 +294,20 @@ public function isReadOnly()
         return true;
     }
 
+    /**
+     * Sets whether this form is read only.
+     *
+     * @param Boolean
+     *
+     * @return Form The current form
+     */
+    public function setReadOnly($readOnly)
+    {
+        $this->readOnly = (Boolean) $readOnly;
+
+        return $this;
+    }
+
     /**
      * Sets the parent form.
      *
diff --git a/tests/Symfony/Tests/Component/Form/FormTest.php b/tests/Symfony/Tests/Component/Form/FormTest.php
index 4fbf6ff9b7b9c..4f901d933dfc3 100644
--- a/tests/Symfony/Tests/Component/Form/FormTest.php
+++ b/tests/Symfony/Tests/Component/Form/FormTest.php
@@ -229,6 +229,18 @@ public function testNotReadOnly()
         $this->assertFalse($child->isReadOnly());
     }
 
+    public function testSetReadOnly()
+    {
+        $form = $this->getBuilder()->getForm();
+        $this->assertFalse($form->isReadOnly());
+
+        $form->setReadOnly(true);
+        $this->assertTrue($form->isReadOnly());
+
+        $form->setReadOnly(false);
+        $this->assertFalse($form->isReadOnly());
+    }
+
     public function testCloneChildren()
     {
         $child = $this->getBuilder('child')->getForm();