diff --git a/app/controllers/devise/registrations_controller.rb b/app/controllers/devise/registrations_controller.rb
index fabe66f8..f8f82b0d 100644
--- a/app/controllers/devise/registrations_controller.rb
+++ b/app/controllers/devise/registrations_controller.rb
@@ -30,6 +30,10 @@ class Devise::RegistrationsController < DeviseController
       end
     else
       clean_up_passwords resource
+      @validatable = devise_mapping.validatable?
+      if @validatable
+        @minimum_password_length = resource_class.password_length.min
+      end
       respond_with resource
     end
   end