  We report on the calculation of the CP-violating form factor $F_3$ and the
corresponding electric dipole moment for charmed baryons in the spin-1/2 sector
generated by the QCD $\theta$-term. We work in the framework of covariant
baryon chiral perturbation theory within the extended-on-mass-shell
renormalization scheme up to next-to-leading order in the chiral expansion.
