Observed HeIIλ1640 luminosity of the ‘HeII clump’ and its projected distance from GN-z11 compared to the expected HeII luminosity as a function of distance from GN-z11, in case of AGN photoionisation. In this calculation, we used the upper limit for the size of the HeII clump and assumed a broad range of AGN ionising shapes powering the photoionisation. Further conservative assumptions are that the ‘HeII clump’ is not made of unresolved clumps and that the projected distance is the actual separation. Clearly, the HeII luminosity observed in the ‘HeII clump’ is inconsistent with being photoionised by the AGN in GN-z11.