The ruling on intending to make up a day from the previous Ramadan at the beginning of the current Ramadan

Question:
The questioner says: I remembered on the first day of Ramadan that I had a day to make up from last year, so I intended before the dawn of that day that the first day would be the make-up for the day in question. After this year's Ramadan, I will make up the day that is due from me. Is my action valid?

Answer:
Your action is not valid. When Ramadan enters, you fast the current Ramadan. When it ends, you fast what is due from you from the previous Ramadan. Yes.