diff --git a/app/models/post.rb b/app/models/post.rb
index b2fdee258..ffda79016 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -21,6 +21,7 @@ class Post < ActiveRecord::Base
     }, :as => :text
     t.add :public
     t.add :created_at
+    t.add :interacted_at
     t.add :comments_count
     t.add :likes_count
     t.add :reshares_count
diff --git a/public/javascripts/app/models/post.js b/public/javascripts/app/models/post.js
index 3560276f8..cbd798cc7 100644
--- a/public/javascripts/app/models/post.js
+++ b/public/javascripts/app/models/post.js
@@ -6,7 +6,15 @@ app.models.Post = Backbone.Model.extend({
   },
 
   createdAt : function() {
-    return new Date(this.get("created_at")) / 1000;
+    return this.timeOf("created_at");
+  },
+
+  interactedAt : function() {
+    return this.timeOf("interacted_at");
+  },
+
+  timeOf: function(field) {
+    return new Date(this.get(field)) /1000;
   },
 
   createReshareUrl : "/reshares",
diff --git a/public/javascripts/app/models/stream.js b/public/javascripts/app/models/stream.js
index edf9a49cb..77a93bdb9 100644
--- a/public/javascripts/app/models/stream.js
+++ b/public/javascripts/app/models/stream.js
@@ -42,7 +42,13 @@ app.models.Stream = Backbone.Collection.extend({
   },
 
   timeFilteredPath : function(){
-   return this.basePath() + "?max_time=" + _.last(this.posts.models).createdAt();
+   return this.basePath() + "?max_time=" + this.maxTime();
+  },
+
+  maxTime: function(){
+    var lastPost = _.last(this.posts.models);
+    var isOnParticipateStream = this.basePath().match(/participate/);
+    return (isOnParticipateStream == null) ? lastPost.createdAt() : lastPost.interactedAt();
   },
 
   add : function(models){