diff --git a/app/controllers/guests_controller.rb b/app/controllers/guests_controller.rb
index 75c1072..1fa29f6 100644
--- a/app/controllers/guests_controller.rb
+++ b/app/controllers/guests_controller.rb
@@ -22,12 +22,6 @@ class GuestsController < ApplicationController
   end
 
   def update
-    if user_signed_in?
-      permitted_params = guest_params
-    else
-      permitted_params = params.expect(guest: %i[status])
-    end
-
     guest = Guest.find(params[:id]).update!(guest_params)
     render json: guest.as_json(GUEST_PARAMS), status: :ok
   end
@@ -40,6 +34,6 @@ class GuestsController < ApplicationController
   private
 
   def guest_params
-    params.expect(guest: %i[name group_id status])
+    user_signed_in? ? params.expect(guest: %i[name group_id status]) : params.expect(guest: %i[status])
   end
 end