diff --git a/lib/ext/person.rb b/lib/ext/person.rb
index 730b913..45d23a9 100644
--- a/lib/ext/person.rb
+++ b/lib/ext/person.rb
@@ -39,6 +39,16 @@ class Person
     }
   }
 
+  def institutions
+    institutions = []
+    unless self.user.institutions.nil?
+      self.user.institutions.each do |institution|
+        institutions << institution.name
+      end
+    end
+    institutions
+  end
+
   def secondary_email
     self.user.secondary_email unless self.user.nil?
   end
@@ -47,22 +57,6 @@ class Person
     self.user.secondary_email = value unless self.user.nil?
   end
 
-  def institution
-    self.user.institution.name if self.user and self.user.institution
-  end
-
-  def institution_id
-    self.user.institution.id unless self.user.institution.nil?
-  end
-
-  def institution_id= value
-    institution = Institution.find(:first, :conditions=>"id = #{value}")
-
-    unless institution.nil?
-      self.user.institution = institution
-    end
-  end
-
   def software?
     false
   end
diff --git a/lib/mpog_software_plugin.rb b/lib/mpog_software_plugin.rb
index e624d89..da0b4d5 100644
--- a/lib/mpog_software_plugin.rb
+++ b/lib/mpog_software_plugin.rb
@@ -168,9 +168,13 @@ class MpogSoftwarePlugin < Noosfero::Plugin
   end
 
 
-  def custom_user_registration_attributes user
-    if user.institution
-      community = user.institution.community
+  def custom_user_registration_attributes user, ids
+    ids.each do |id|
+      user.institutions << Institution.find(id) if !id.empty?
+    end
+
+    user.institutions.each do |institution|
+      community = institution.community
       community.add_member user.person
     end
   end
@@ -195,7 +199,7 @@ class MpogSoftwarePlugin < Noosfero::Plugin
  end
 
   def profile_required_list
-    required_list = ["cell_phone","contact_phone","institution","comercial_phone","country","city","state","organization_website","area_interest","image"]
+    required_list = ["cell_phone","contact_phone","institutions","comercial_phone","country","city","state","organization_website","area_interest","image"]
   end
 
   def profile_required_empty_list person
diff --git a/views/profile/_profile_tab.html.erb b/views/profile/_profile_tab.html.erb
index d16960e..307dc29 100644
--- a/views/profile/_profile_tab.html.erb
+++ b/views/profile/_profile_tab.html.erb
@@ -5,5 +5,5 @@
 
   <%= display_field(_('Secondary E-mail:'), profile, :secondary_email, true) %>
   <%= display_field(_('Areas of Interest:'), profile, :area_interest, true) %>
-  <%= display_field(_('Institution:'), profile, :institution, true) %>
+  <%= display_field(_('Institution:'), profile, :institutions, true) %>
 </table>
--
libgit2 0.21.2