diff --git a/app/controllers/export_controller.rb b/app/controllers/export_controller.rb
index 89f357bc2..b62e5120c 100644
--- a/app/controllers/export_controller.rb
+++ b/app/controllers/export_controller.rb
@@ -44,6 +44,7 @@ def contacts
                     contacts = Hash.new
 
                     add_contact = Proc.new { |contacts, email, id, firstname, lastname, type|
+                        email.downcase
                         if email
                             unless contacts.has_key?(email)
                                 contacts[email] = {