Foil (20) for paddle (14) of turboshaft engine including/understanding two branches (21A, 21B) ready to come to wrap the sides of the foot (16) of the paddle, and two legs (22) respectively extending starting from an end from the two branches, these two legs (22) being folded up one towards the other and being connected between them so as to prevent them from unfolding itself. Advantageously, this foil (20) includes/understands a part of connection (24) connecting the aforementioned legs (22) so as to prevent them from unfolding itself. This part of connection (24) is assembled with the known as legs (22) so as to authorize the spacing of the branches (21A, 21B) of foil. For example, the part of connection is ready to be stretched according to the direction of spacing (A) of the branches (21A, 21B).