Rooms are not sorted on the lab page

Example: on https://queue.ewi.tudelft.nl/lab/748 the rooms are shown as follows:

DW-IZ 4 (170 1verd), DW-IZ 2 (150 1verd), DW-IZ 1 (140 1verd), DW-IZ 3 (160 1verd), DW-TZ 2

It would be nice to have the IZ rooms in order (1, 2, 3, 4). Implementing alphabetical ordering would probably help a lot.