im on the CIA level, and havent had any trouble till now, if you have played the level, i need some help.

you know the two doors that are next to eachother with the keypad code "2019"? i enter the code and as soon as i step foot into one of the rooms the alarm goes off, and i mean IMMEDIATELY. i tried practically everything, and i dont like asking for help on a game like this, but i cant figure it out. help me out if you can.