135mm rear end, 130mm rear wheel, Titanium frame
You could add two 2.5mm spacers on each side, or even on the same side (or one 5mm spacer).

If you add to one side, you could even correct some perceived/subjective asymmetry, be it with chainline or with wheel dishing.

It's not impossible, if you use the wheel without spacers, that the dropouts get marked by the axle nuts, due to the slight twisting that will probably appear. Anyway, as others pointed, most probably that would not seriously damage anything else.

(More "anyway" yet, I would try the spacers first ;oP )