Issue with spline order

[ruffai]

Hello,

I'm using imcontsub on a MeerKAT data cube and I would like to increase the order of the spline. The suggested syntax, however, does not work, giving me the following error:

ilariaruffa@Ilarias-MacBook-Pro-2 N3557_MeerKAT % imcontsub --order [3,3] --no-stokes-axis --overwrite --mask-image NGC3557_r15_t0_3kms_3kms_cleanmask_1_mask_comb_full_depth_regrid.fits comb_full_depth_NGC3557_HI_r15_t0_3kms_mg095_2.image.fits
zsh: no matches found: [3,3]

can you please help me solving this issue?
Thanks a lot,
Ilaria