diff --git a/src/components/Navbar.svelte b/src/components/Navbar.svelte
index 1122b9b..0f5a951 100644
--- a/src/components/Navbar.svelte
+++ b/src/components/Navbar.svelte
@@ -125,7 +125,7 @@
                 <div>
                     <a
                         data-astro-reload
-                        href={l("/", {}, { targetLocale: typeof navigator !== "undefined" ? navigator.language : "de" })}
+                        href={l("/", {}, { targetLocale: typeof navigator !== "undefined" ? navigator.language.split("-")[0] : "de" })}
                         onclick={() => cookieStore.delete("MANUAL_LANGUAGE")}
                         class="btn btn-gray">Auto</a
                     >