In December, Dode was promoted to colonel and attached as head of the engineers to Marshal Lefebvre's Corps. However, for the campaign of 1806, Dode was again made head of the engineers on Lannes' staff, a function which saw his participation in the battles of Saalfeld and Jena. After Jena, Dode was sent to repair a bridge over the Elbe and prepare the crossing of the Oder. Dode then took part in the battles of Pułtusk and Ostrolenka. In 1807 he was attached to the staff of Marshal Mortier and in 1808 he was made a baron. When his uncle died and willed him his estate "Brunerie", Dode adopted this and attached it to his own name, from then on being named "Dode de la Brunerie".