  By using the product ansatz as an approximation for the two-baryon system we
investigate the isoscalar nucleon-nucleon spin-orbit potential in an extended
Skyrme model including both fourth- and sixth-order terms. As it is the case
for the Skyrme model, we still obtain the wrong sign for this interaction.
Nevertheless, concerning the order of magnitude, the extended Skyrme model
provides a better agreement with phenomenological potentials, as compared to
the standard one.
