Non-Fermi liquid behaviour in single-crystalline U 2Pt2In has been studied by means of resistivity experim ents (I||c) under hydrostatic pressure ( P<1.5 GPa). At ambient pressure the resistivity ρ(T) follows a power law ρ~T with α~0.5. Upon applying pressure α increases. For P>1 GPa a minimum develops in ρ(T). A study of the field dependence of the minimum confirms its magnetic ori gin. The ratio c/a is proposed as the effective control parameter, rather than the unit cell volume.