diff --git a/app/controllers/experiments_controller.rb b/app/controllers/experiments_controller.rb
index 1cc9541..0f897a9 100644
--- a/app/controllers/experiments_controller.rb
+++ b/app/controllers/experiments_controller.rb
@@ -69,7 +69,7 @@ class ExperimentsController < ApplicationController
     	subject_links = subject.subject_links.collect do |f|
     	  {
     	    "link_url" => f.url,
-    	    "link_title" => f.title
+          "link_title" => (f.title.blank? ? f.url : f.title)
     	  }
     	end
 
@@ -136,7 +136,7 @@ class ExperimentsController < ApplicationController
       subject_links = subject.subject_links.collect do |f|
         {
           "link_url" => f.url,
-          "link_title" => f.title
+          "link_title" => (f.title.blank? ? f.url : f.title)
         }
       end