w_scan: no data from PAT

I'm using w_scan to get channel list for my DVB-T stick. But despite channels being found, channels.conf file is empty. I suspect Info: no data from PAT has something to do with this. I know the DVB-T stick is working, because if I enter the frequency into VLC player, I can watch the first channel (SLO1). Terminal output: [rok@rok-laptop ~]$ w_scan -c SI > channels.conf w_scan version 20120605 (compiled for DVB API 5.6) using settings for SLOVENIA 842000: (time: 03:54) 850000: (time: 03:59) 858000: (time: 04:03) tune to: QAM_64 f = 562000 kHz I999B8C23D0T8G4Y0 (time: 04:06) Info: no data from PAT service = SLO1 (RTV SLOVENIJA) service = SLO2 (RTV SLOVENIJA) service = SLO3 (RTV SLOVENIJA) service = POP TV (PROPLUS) service = KANAL A (PROPLUS) service = GOLICA TV (GOLICA TV) service = VAS KANAL (TV NOVO MESTO) service = TV PINK 3 (AGENCIJA MEDIAS) service = TV NAKUPI (DOMATES) dumping lists (0 services) Done.