In the year 2000, Eric Egge introduced the generalized Terwilliger algebra $\mathcal T$ of a distance-regular graph $Γ$. For any vertex $x$ of $Γ,$ there is a surjective algebra homomorphism $\natural$ from $\mathcal T$ to the Terwilliger algebra $T(x)$. If $Γ$ is complete, then $\natural$ is an isomorphism. If $Γ$ is not complete, then $\natural$ may or may not be an isomorphism, and in general the details are unknown. We show that if $Γ$ is a hypercube, then the algebra homomorphism $\natural:\mathcal T \to T(x)$ is an isomorphism for all vertices $x$ of $Γ$.