diff --git a/src/components/Navbar.svelte b/src/components/Navbar.svelte
index fa518da..1122b9b 100644
--- a/src/components/Navbar.svelte
+++ b/src/components/Navbar.svelte
@@ -123,7 +123,12 @@
                     <GlobeOutline />
                 </button>
                 <div>
-                    <a data-astro-reload href={l("/", {}, { targetLocale: navigator.language })} onclick={() => cookieStore.delete("MANUAL_LANGUAGE")} class="btn btn-gray">Auto</a>
+                    <a
+                        data-astro-reload
+                        href={l("/", {}, { targetLocale: typeof navigator !== "undefined" ? navigator.language : "de" })}
+                        onclick={() => cookieStore.delete("MANUAL_LANGUAGE")}
+                        class="btn btn-gray">Auto</a
+                    >
                     <a data-astro-reload href={l("/", {}, { targetLocale: "de" })} onclick={() => cookieStore.set("MANUAL_LANGUAGE", "TRUE")} class="btn btn-gray">Deutsch</a>
                     <a data-astro-reload href={l("/", {}, { targetLocale: "en" })} onclick={() => cookieStore.set("MANUAL_LANGUAGE", "TRUE")} class="btn btn-gray">English</a>
                 </div>