diff --git a/app/views/invite/_personalize_invitation_mail.html.erb b/app/views/invite/_personalize_invitation_mail.html.erb
index 088426a..dd30c19 100644
--- a/app/views/invite/_personalize_invitation_mail.html.erb
+++ b/app/views/invite/_personalize_invitation_mail.html.erb
@@ -1,8 +1,6 @@
 <br/>
 
-<%= link_to_function(_('Personalize invitation mail'), nil) do |page|
-  page['invitation-mail_template'].show
-end %>
+<%= link_to_function _('Personalize invitation mail'), '$(\'invitation-mail_template\').show()' %>
 
 <div id='invitation-mail_template' style='display:none'>
   <%= h _("Now enter an invitation message. You must keep the <url> code in your invitation text. When your friends receive the invitation e-mail, <url> will be replaced by a link that they need to click to activate their account. <user> and <friend> codes will be replaced by your name and friend name, but they are optional.") %>
--
libgit2 0.21.2