diff --git a/lib/mpog_software_plugin.rb b/lib/mpog_software_plugin.rb
index da0b4d5..78337c4 100644
--- a/lib/mpog_software_plugin.rb
+++ b/lib/mpog_software_plugin.rb
@@ -40,7 +40,7 @@ class MpogSoftwarePlugin < Noosfero::Plugin
 
       content_tag(:div,
         labelled_form_field(
-          _('Institution'),
+          _('Institutions'),
           content_tag(:div,
             text_field(:institution, :name, :id=>"input_institution"),
           :class => 'institution_container')+
@@ -50,7 +50,7 @@ class MpogSoftwarePlugin < Noosfero::Plugin
           content_tag(:div, _("The searched institution does not exist"), :id=>"institution_empty_ajax_message", :class=>"errorExplanation hide-field")+
           link_to(_("Add new institution"), "#", :class=>'button with-text icon-add', :id => 'add_new_institution') +
           link_to(_("Create new institution"), "#", :id=>"create_institution_link", :class=>'button with-text icon-add')+
-          hidden_field_tag("user[institutions][]", "", :class => 'user_institutions')+
+          hidden_field_tag("user[institution_ids][]", "", :class => 'user_institutions')+
           hidden_field_tag("institution_selected", "")+
           content_tag("ul", "",:class=>"institutions_added")+
           content_tag(:div, "", :id=>"institution_dialog")
@@ -168,10 +168,16 @@ class MpogSoftwarePlugin < Noosfero::Plugin
   end
 
 
-  def custom_user_registration_attributes user, ids
-    ids.each do |id|
-      user.institutions << Institution.find(id) if !id.empty?
+  def custom_user_registration_attributes user
+    unless context.params[:user][:institution_ids].nil?
+      context.params[:user][:institution_ids].delete("")
+
+      context.params[:user][:institution_ids].each do |institution_id|
+        institution = Institution.find institution_id
+        user.institutions << institution
+      end
     end
+    user.save unless user.institution_ids.empty?
 
     user.institutions.each do |institution|
       community = institution.community
--
libgit2 0.21.2