  We consider Higgs boson pair production at the LHC in the $b \bar{b} W^+ W^-$
channel, with subsequent decay of the $W^+W^-$ pair into $\ell \nu j j$.
Employing jet substructure and event reconstruction techniques, we show that
strong evidence for this channel can be found at the 14 TeV LHC with 600
fb$^{-1}$ of integrated luminosity, thus improving the current reach for the
production of Higgs boson pairs. This measurement will allow to probe the
trilinear Higgs boson coupling $\lambda$.
