diff --git a/app/assets/javascripts/backbone/views/show_activity.js.coffee b/app/assets/javascripts/backbone/views/show_activity.js.coffee
index 89083d2a..ff77f7ec 100644
--- a/app/assets/javascripts/backbone/views/show_activity.js.coffee
+++ b/app/assets/javascripts/backbone/views/show_activity.js.coffee
@@ -16,7 +16,7 @@ class Kandan.Views.ShowActivity extends Backbone.View
         @compiledTemplate = Kandan.Helpers.Activities.buildFromMessageTemplate activity
 
     $(@el).data("activity-id", activity.id)
-    if activity.action == "message" && activity.user_id == Kandan.Helpers.Users.currentUser().id
+    if activity.action == "message" && activity.user.id == Kandan.Helpers.Users.currentUser().id
       $(@el).addClass("current_user")
 
     if activity.id == undefined