The reaction of Ni(6-Mes)(PPh3)Br (6-Mes = bis(1,3-(2,4,6-trimethylphenyl)imidazol-2-ylidene) with 2.5 equivalents of NaBH4 leads to formation of product characterised as {Ni(6-Mes)}2(mu-BH4)2 (2, Scheme 1).The product has been characterised by X-ray crystallography, but we were unable to elucidate the precise coordination modes of the two asymmetrically bound bridging borohydride ligands. Such information is vital in rationalising the likelihood of BH3 loss as a route to what would be a unique and possibly catalytically active Ni(I)-H species.