diff --git a/app/views/account/_signup_form.rhtml b/app/views/account/_signup_form.rhtml
index 6be4ad9..4042d94 100644
--- a/app/views/account/_signup_form.rhtml
+++ b/app/views/account/_signup_form.rhtml
@@ -41,6 +41,17 @@
   <%= hidden_field_tag :new_user, true %>
 <% end %>
 
+<% if ! defined? hidden_atention || ! hidden_atention %>
+<p/>
+<div class="atention">
+<%= _('Here you should create a login for an <b>individual person</b>.
+<br/>
+Do <b>not</b> enter a login for a group nor for an entreprise.
+With your user login, you can create <b>many</b> group or entreprise
+accounts. You can do it from your personal control panel.') %>
+</div>
+<% end %>
+
 <% button_bar do %>
   <%= submit_button('save', _('Sign up'), :cancel => {:action => 'index'}, :class => 'icon-menu-login') %>
 <% end %>
diff --git a/app/views/account/activate_enterprise.rhtml b/app/views/account/activate_enterprise.rhtml
index b686e8b..779af71 100644
--- a/app/views/account/activate_enterprise.rhtml
+++ b/app/views/account/activate_enterprise.rhtml
@@ -13,7 +13,7 @@
 
 <div id="enterprise-activation-create-user-form" style="display: none">
   <h3><%= _('Personal signup form') %></h3>
-  <%= render :partial => 'signup_form' %>
+  <%= render :partial => 'signup_form', :locals => { :hidden_atention => true } %>
   <p><%= message = _('<b>Warning</b>: this form is for your personal information, not of your enterprise. So you will have a personal account that can manage your enterprise.') %></p>
 </div>
 
diff --git a/public/stylesheets/common.css b/public/stylesheets/common.css
index fd84f1a..6b97bc4 100644
--- a/public/stylesheets/common.css
+++ b/public/stylesheets/common.css
@@ -157,6 +157,11 @@ div#notice {
   margin: 0px 0px 10px 0px;
 }
 
+.atention {
+  border: 6px double #000;
+  background: #FE5;
+  padding: 8px 13px;
+}
 
 #better-browser-promotion {
   position: absolute;
--
libgit2 0.21.2