Legion Name Problem

[Flying Pig]

I added the legionary_name to my first cohort and wrote a name into data\world\maps\campaign... descr_regions.txt. It goes:

Latium
legion: Praetorian
Rome
romans_scipii
Latins
52 13 198
slaves, dogs, pigs, rome
5
8

But when I create the First Cohort in Rome, it just says legio I. What is wrong?