Let $M$ be a smooth simply connected manifold and let $N$ be $M$ minus a point. Is it possible to construct a Sullivan model for $N$ (i.e. a commutative differential graded algebra (cdga) which is connected to the algebra of $\mathbf{Q}$-polynomial forms on $N$ by a chain of cdga quasi-isomorphisms) starting from the minimal Sullivan model for $M$?