Upper panel: combined r′-band image result of the GTC late observations. The two long-dashed circles indicate the astrometric error circles of the UVOT (Kuin & Sbarufatti 2012) and Liverpool Telescope (Smith & Virgili 2012) positions reported for the optical afterglow. The small circle is the result of registering the acquisition image of the GTC afterglow spectrum on the deep late image taken with the same telescope. The three circles are consistent with a faint underlying object which we propose to be the host galaxy. Lower panel: the GRB 120327A I-band light curve from IAC80.