  We consider an abelian T-duality on a deformation of the gravitational
solution of \cite{Maldacena2001}, which is the gravity dual of $N_c$ D5-branes
wrapping a three-cycle inside a manifold that admits a $G_2$ structure.
Performing the T-duality we find $N_c$ D$4$-branes wrapping a two-cycle with
non-trivial antisymmetric fields in the NS-NS and RR sector. We study some
aspects of its dual field theory and we compare with the original solution.
