diff --git a/app/models/incoming_link.rb b/app/models/incoming_link.rb
index d082fa4e210..ba996f33749 100644
--- a/app/models/incoming_link.rb
+++ b/app/models/incoming_link.rb
@@ -40,7 +40,8 @@ class IncomingLink < ActiveRecord::Base
   # Internal: Extract the domain from link.
   def extract_domain
     if referer.present?
-      self.domain = URI.parse(referer).host
+      self.domain = URI.parse(self.referer).host
+      self.referer = nil unless self.domain
     end
   end