[Dovecot] personal sieve script not included

Hello, I'm using dovecot 2.2.10 and roundcube (with managesieve enabled). Sieve filtering works well, as long the rule is written into ~/.dovecot.sieve (which is a link to ~/sieve/managesieve.sieve) When adding a new filter set (in roundcube) the script is written to ~/sieve/newfilterset.sieve. This script will not be executed. How can I solve this?

I set sieve_dir = ~/sieve This should work, except I misunderstand the doc.

# ls -l ./sieve total 6 -rw------- 1 vmail mail 105 Feb 5 09:24 managesieve.sieve -rw------- 1 vmail mail 113 Feb 4 16:30 test.sieve drwx------ 2 vmail mail 512 Feb 5 09:24 tmp

Regards, Thomas.