A wireless device may receive, from a base station, a timing offset indicator indicating an offset between a sidelink feedback resource and an uplink feedback resource. The wireless device may determine a second slot based on the timing offset indicator and a first slot for a sidelink feedback of a sidelink transport block transmitted by the wireless device. The wireless device may transmit, to the base station and via the uplink feedback resource in the second slot, a sidelink feedback report based on the sidelink feedback.