  We complete the computation of the Mueller-Tang jet impact factor at
next-to-leading order (NLO) initiated in arXiv:1406.5625 and presented in
arXiv:1404.2937 by computing the real corrections associated to gluons in the
initial state making use of Lipatov's effective action. NLO corrections for
this effective vertex are an important ingredient for a reliable description of
large rapidity gap phenomenology within the BFKL approach.
