diff --git a/ui/src/components/header.tsx b/ui/src/components/header.tsx
index cabc45e..18434b1 100644
--- a/ui/src/components/header.tsx
+++ b/ui/src/components/header.tsx
@@ -113,7 +113,11 @@ export function Header() {
                       </svg>
                     )}
                     <span className="text-sm text-slate-600 dark:text-slate-400">
-                      {theme === "dark" ? "Mode sombre" : "Mode clair"}
+                      {theme === "dark"
+                        ? "Mode sombre"
+                        : theme === "light"
+                        ? "Mode clair"
+                        : "Mode système"}
                     </span>
                   </div>
                 </Switch>