  Associated production of charged gauge bosons and charged charmed mesons at
the LHC is considered in the framework of $k_T$-factorization approach.
Theoretical predictions are compared with ATLAS data, and reasonably good
agreement is found. Predictions on the same-sign $W^{\pm}D^{\pm}$
configurations are presented including single parton scattering and double
parton scattering contributions. The latter are shown to dominate over the
former, thus giving evidence that the proposed process can serve as another
indicator of double parton interactions.
