  In this letter we present the first results from a program aimed at measuring
the stellar kinematics of blue compact galaxies by observing the near-infrared
Calcium triplet. We show the first results for ESO 400-G43 based on deep
VLT/FORS2 spectroscopy. The instabilities found in the central gaseous velocity
field are not seen in the solid body stellar rotation curve, indicating that
stars and gas are kinematically decoupled in this galaxy. Even if this galaxy
has a perturbed gaseous velocity field, the stellar velocity dispersion on
average agrees well with that derived from the nebular lines.
