Another important ruling by the ECJ, again brought by UNISON, secured holiday pay for workers, such as many sales workers, whose pay is made up of results-based commission (Lock v British Gas Trading Limited [2014] IRLR 648). This ruling confirms that holiday pay must include any commission the worker would have earned had they not been on holiday. Over 60% of Mr Lock’s wages were made up of commission. Losing this part of his pay was a major deterrent to taking holiday and a breach of the WTD.