diff --git a/app/missions/[missionId]/page.tsx b/app/missions/[missionId]/page.tsx
index 747cb914..f97272db 100644
--- a/app/missions/[missionId]/page.tsx
+++ b/app/missions/[missionId]/page.tsx
@@ -569,18 +569,21 @@ export default function MissionDetailPage() {
                     Sauvegarder
                   </Button>
                 )}
-                <Button
-                  onClick={handleGeneratePlan}
-                  disabled={generatingPlan}
-                  className="bg-blue-600 hover:bg-blue-700 text-white"
-                >
-                  {generatingPlan ? (
-                    <Loader2 className="h-4 w-4 mr-2 animate-spin" />
-                  ) : (
-                    <Sparkles className="h-4 w-4 mr-2" />
-                  )}
-                  {mission.actionPlan ? "Régénérer" : "Générer"}
-                </Button>
+                {/* Only show Generate button if no plan has been saved yet */}
+                {!mission.actionPlan && (
+                  <Button
+                    onClick={handleGeneratePlan}
+                    disabled={generatingPlan}
+                    className="bg-blue-600 hover:bg-blue-700 text-white"
+                  >
+                    {generatingPlan ? (
+                      <Loader2 className="h-4 w-4 mr-2 animate-spin" />
+                    ) : (
+                      <Sparkles className="h-4 w-4 mr-2" />
+                    )}
+                    Générer
+                  </Button>
+                )}
               </div>
             </div>