diff --git a/code/Forms/EditorEmailLinkFormFactory.php b/code/Forms/EditorEmailLinkFormFactory.php
index deeffadb4..02c8adc76 100644
--- a/code/Forms/EditorEmailLinkFormFactory.php
+++ b/code/Forms/EditorEmailLinkFormFactory.php
@@ -29,6 +29,8 @@ protected function getFormFields($controller, $name, $context)
             $fields->insertAfter('Link', TextField::create('Text', _t(__CLASS__.'.LINKTEXT', 'Link text')));
         }
 
+        $this->extend('updateFormFields', $fields, $controller, $name, $context);
+
         return $fields;
     }
 
diff --git a/code/Forms/LinkFormFactory.php b/code/Forms/LinkFormFactory.php
index 5f00a221d..b154a47eb 100644
--- a/code/Forms/LinkFormFactory.php
+++ b/code/Forms/LinkFormFactory.php
@@ -43,6 +43,8 @@ public function getForm(RequestHandler $controller = null, $name = FormFactory::
         $form = Form::create($controller, $name, $fields, $actions, $validator);
         $form->addExtraClass('form--no-dividers');
 
+        $this->extend('updateForm', $form, $controller, $name, $context);
+
         return $form;
     }
 
@@ -55,6 +57,8 @@ protected function getFormActions($controller, $name, $context)
                 ->setSchemaData(['data' => ['buttonStyle' => 'primary']]),
         ]);
 
+        $this->extend('updateFormActions', $actions, $controller, $name, $context);
+
         return $actions;
     }