diff --git a/components/missions/missions-admin-panel.tsx b/components/missions/missions-admin-panel.tsx
index 38fa2bab..2ff4287d 100644
--- a/components/missions/missions-admin-panel.tsx
+++ b/components/missions/missions-admin-panel.tsx
@@ -893,7 +893,7 @@ export function MissionsAdminPanel() {
                             variant="outline" 
                             size="sm" 
                             onClick={() => removeUserFromAllRoles(gardienDuTemps)}
-                            className="text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8"
+                            className="text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8 bg-white"
                             disabled={loading}
                           >
                             <X size={16} className="mr-1" />
@@ -949,7 +949,7 @@ export function MissionsAdminPanel() {
                             variant="outline" 
                             size="sm" 
                             onClick={() => removeUserFromAllRoles(gardienDeLaParole)}
-                            className="text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8"
+                            className="text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8 bg-white"
                             disabled={loading}
                           >
                             <X size={16} className="mr-1" />
@@ -1005,7 +1005,7 @@ export function MissionsAdminPanel() {
                             variant="outline" 
                             size="sm" 
                             onClick={() => removeUserFromAllRoles(gardienDeLaMemoire)}
-                            className="text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8"
+                            className="text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8 bg-white"
                             disabled={loading}
                           >
                             <X size={16} className="mr-1" />
@@ -1184,7 +1184,7 @@ export function MissionsAdminPanel() {
                                           disabled={loading}
                                         >
                                           <UserPlus size={16} className="mr-1" />
-                                          {isUserAssigned(user.id) ? "Ajouter rôle" : "Enregistrer"}
+                                          Ajouter rôle
                                         </Button>
                                       </DropdownMenuTrigger>
                                       <DropdownMenuContent align="end" className="bg-white border border-gray-200">
@@ -1225,7 +1225,7 @@ export function MissionsAdminPanel() {
                                         variant="outline" 
                                         size="sm" 
                                         onClick={() => removeUserFromAllRoles(user.id)}
-                                        className="ml-2 text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8"
+                                        className="ml-2 text-red-600 hover:bg-red-50 hover:text-red-700 border-red-200 h-8 bg-white"
                                         disabled={loading}
                                       >
                                         <X size={14} className="mr-1" />