diff --git a/tp/simu_robot_etu/Ressources/simu_robot.m b/tp/simu_robot_etu/Ressources/simu_robot.m
index e9ffa6bf138e41f11b1d052bf8c4c2cc22afcc46..8e5dc750a72b9976030a1f2f673da552772eee04 100644
--- a/tp/simu_robot_etu/Ressources/simu_robot.m
+++ b/tp/simu_robot_etu/Ressources/simu_robot.m
@@ -35,7 +35,7 @@ simOut = sim(fich_simulink_etu,[t0 tf],options_sim);
 % fich_mat = ['TP2_Etudiants/Resultats/' fich '.mat'];
 fich_mat = ['Ressources/' fich '.mat'];      
 load(fich_mat, 'X_sol', 'U_sol');
-comparaison(fich, X, X_sol, U, U_sol);
+comparaison(fich, simOut.X, X_sol, simOut.U, U_sol);
 
 if fich == 'cas1_2',
     % fich_mat = ['TP2_Etudiants/Resultats/' fich '.mat'];