 
 				# Broadcast to others.
 				broadcastNotificationsEvent(
-					notifications, 'shrub.ui.notifications.acknowledged', req
+					req
+					event: 'shrub.ui.notifications.acknowledged'
+					notifications: notifications
 				)
 
 				Promise.all(


			# Broadcast to others.
			broadcastNotificationsEvent(
				req.notifications, 'shrub.ui.notifications.markAsRead', req
				markedAsRead: req.body.markedAsRead
			)

			Promise.all(

			data.ids = ids
			data.queue = queueName

			if includeSelf
				socketManager().broadcast channel, event, data
			else
				req.socket.broadcast.to(channel).emit event, data

	# ## Implements hook `collections`
	registrar.registerHook 'collections', ->
