diff --git a/plone/app/discussion/browser/comments.py b/plone/app/discussion/browser/comments.py
index e4e736c..480baf1 100644
--- a/plone/app/discussion/browser/comments.py
+++ b/plone/app/discussion/browser/comments.py
@@ -19,6 +19,7 @@ from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile
 from Products.CMFCore.utils import getToolByName
 
 from Products.CMFPlone import PloneMessageFactory as _
+from Products.statusmessages.interfaces import IStatusMessage
 
 from plone.registry.interfaces import IRegistry