diff --git a/app/controllers/usuaries_controller.rb b/app/controllers/usuaries_controller.rb
index 6d02a35a..b0ab77cd 100644
--- a/app/controllers/usuaries_controller.rb
+++ b/app/controllers/usuaries_controller.rb
@@ -72,6 +72,8 @@ class UsuariesController < ApplicationController
     site_usuarie = SiteUsuarie.new(@site, current_usuarie)
     authorize site_usuarie
 
+    params[:invited_as] = Rol::INVITADE unless Rol.role? params[:invited_as]
+
     @policy = policy(site_usuarie)
   end
 
diff --git a/app/models/rol.rb b/app/models/rol.rb
index 5879d666..fcd07037 100644
--- a/app/models/rol.rb
+++ b/app/models/rol.rb
@@ -21,4 +21,8 @@ class Rol < ApplicationRecord
   def usuarie?
     rol == USUARIE
   end
+
+  def self.role?(rol)
+    ROLES.include? rol
+  end
 end