diff --git a/app/controllers/repositories_controller.rb b/app/controllers/repositories_controller.rb
index b9378d9b8..211dd84fb 100644
--- a/app/controllers/repositories_controller.rb
+++ b/app/controllers/repositories_controller.rb
@@ -7,7 +7,11 @@ class RepositoriesController < ApplicationController
   before_filter :check_global_access, :only => [:index, :new, :create]
 
   def index
-    @repositories = Repository.paginate(:page => params[:repository_page])
+    if params[:platform_id]
+      @repositories = Platform.find(params[:platform_id]).repositories.paginate(:page => params[:repository_page])
+    else
+      @repositories = Repository.paginate(:page => params[:repository_page])
+    end
   end
 
   def show