This document discloses a solution for performing channel selection for a wireless network. According to an aspect, a method comprises: detecting, by a first network node, at least a second network node; determining, by the first network node, a primary channel of the second network node and a set of channel bonding configurations supported by the second network node, wherein the set of channel bonding configurations defines one or more configurations for combining the primary channel with auxiliary channels; determining, by the first network node, channel utilisation factors of the second network node for a set of frequency channels by using the set of channel bonding configurations; and selecting, by the first network node, a primary channel on the basis of the channel utilisation factors.