diff --git a/plugins/remote_user/lib/remote_user_plugin.rb b/plugins/remote_user/lib/remote_user_plugin.rb
index 7160e1d..5e013df 100644
--- a/plugins/remote_user/lib/remote_user_plugin.rb
+++ b/plugins/remote_user/lib/remote_user_plugin.rb
@@ -48,8 +48,11 @@ class RemoteUserPlugin < Noosfero::Plugin
             end
           end
         end
+      rescue ::ActiveRecord::RecordInvalid
+        session[:notice] = _('Could not create the remote user.')
+        render_404
       rescue
-        session[:notice] = _('Could not create the remote_user.')
+        session[:notice] = _("Could not log in.")
         render_404
       end
     end
--
libgit2 0.21.2