would you change the song title or not worry and stick with it?

I've never done it before (my song title's tend to be pretty unique) but I've just written a song and then realised I nicked the title from a Pulp song. It's not a song I know very well and thematically/lyrically/musically it's totally different. But it's annoying. It's definitely the right title for the song I've written but the shared title thing is gonna bug me.

PS I'm well aware no-one else cares about this subject but thought I'd post this anyway.