A joint for mounting an elongate element to a structural element in a vehicle, comprising a first and a second clamping portion, tightening elements configured to tighten the first and second clamping portions towards each other so that when the elongate element is arranged between the first and second clamping portions, the elongate element becomes clamped, a first and a second support portion, wherein the first and second support portions are spaced from each other and extend from the first clamping portion to the second clamping portion, wherein when the elongate element is arranged between the first and second clamping portions and the tightening elements tighten the first and second clamping portions, then at least one of the first and second clamping portions is configured to press at least one of the support portions towards the other one so that the elongate element becomes laterally contacted.