How to get taxonomy annotations in biom file?

[kkcool]

Hello.
I followed these commands to merge taxonomy assignments with my OTU table.
However, when I am converting it to .txt file using the following command-
biom convert -i table.biom -o table.from_biom_w_taxonomy.txt --to-tsv --header-key taxonomy
I am not getting the taxonomy annotations in the place of OTU IDs.
Kindly guide.