Nuclear modification factor, \RpPb, of electrons from heavy-flavour hadron decays as a function of transverse momentum for minimum-bias p--Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. The vertical bars represent the statistical uncertainties, and the boxes indicate the systematic uncertainties. The systematic uncertainty from the normalisation, common to all points, is shown as a solid box at high \pt at \RpPb = 1. The published results  are updated using the heavy-flavour hadron decays measurement obtained by ALICE in pp collisions at $\sqrt{s}$ = 5.02 TeV . The points above 8 \GeVc are updated and extended using the EMCal trigger. The results are compared with theoretical models , as described in the text.