Final host-subtracted u′-band light curve of the AGN in Mrk 1018. The blue points are the data points with statistical uncertainties shown by error bars and the blue shaded area represents the systematic uncertainty arising from the choice of image used to model the host galaxy component. This outburst is the most significant as yet observed during Mrk 1018’s new type 1.9 state. Both sunblock periods are indicated in grey.