Source: Commons divisions
UK Parliament · Commons Division 282 · 18 December 2018
229 Aye / 304 No · lost by 75 · 4 tellers (not counted) · 1 both
Totals are Parliament’s official count, which does not include the tellers. Parliament’s published list names 228 of the 229 Aye voters and 303 of the 304 No voters; tellers are listed and marked but not counted.
Walking through both the Aye and No lobbies is a recorded form of deliberate abstention.