Abstract
Let
G
be a simple and simply connected complex Lie group, ${\goth{g}}$ its Lie algebra. I remove the restriction ``
G
is of classical type or
G
2
'' made on
G
in the papers of Beauville, Laszlo and myself [L-S] and [B-L-S] on the moduli of principal G-bundles over a curve. As I will just "patch" the missing technical points, this note should be seen as an appendix to the above cited papers.