diff --git a/public/html/index.html b/public/html/index.html
index a653ee6..d530016 100644
--- a/public/html/index.html
+++ b/public/html/index.html
@@ -35,6 +35,6 @@
             <img src="../images/gear.png">
         </div>
         
-        <button class="button" id="launch">Launch</button>
+        <button class="button" id="launch" i18id="Launch">Launch</button>
     </body>
 </html>
diff --git a/src/ts/LauncherUI.ts b/src/ts/LauncherUI.ts
index 42073ee..133fa5a 100644
--- a/src/ts/LauncherUI.ts
+++ b/src/ts/LauncherUI.ts
@@ -55,7 +55,7 @@ export class LauncherUI
                 break;
 
             case 'game-update-available':
-                $('#launch').text('Update');
+                $('#launch').text('Update'); // FIXME i18n.translate
 
                 break;
 
@@ -155,4 +155,14 @@ export class LauncherUI
     {
         Genshinlib.getBackgroundUri().then(uri => $('body').css('background-image', `url(${uri})`));
     }
+
+    public static updateLang (lang: string|null = null): void
+    {
+        if (lang !== null)
+            i18n.setLang(lang);
+
+        $('*[i18id]').each((i, element) => {
+            element.innerText = i18n.translate(element.getAttribute('i18id')?.toString()!);
+        });
+    }
 }
\ No newline at end of file
diff --git a/src/ts/i18n.ts b/src/ts/i18n.ts
index dd6f8fb..1f5fe02 100644
--- a/src/ts/i18n.ts
+++ b/src/ts/i18n.ts
@@ -20,7 +20,7 @@ export class i18n
           // Test if the locale is the same string so if it's de-de or id-id remove -de or -id like navigator.language does.
           let samecode = new RegExp(`(${lang.replace(/-.*$/, '')}.*){2}`, 'g');
 
-          if (samecode.test(lang.toLowerCase()))
+          if (samecode.test(lang))
                lang = lang.replace(/-.*$/, '');
 
           switch (lang)
diff --git a/src/ts/index.ts b/src/ts/index.ts
index 6a6be6e..0438930 100644
--- a/src/ts/index.ts
+++ b/src/ts/index.ts
@@ -37,9 +37,7 @@ $(() => {
 
     ipcRenderer.on('change-lang', (event: void, data: any) => {
         LauncherUI.updateBackground();
-        LauncherUI.setState(LauncherUI.launcherState);
-
-        i18n.setLang(data.lang);
+        LauncherUI.updateLang();
     });
 
     let rpc: any;
diff --git a/src/ts/settings.ts b/src/ts/settings.ts
index 5499c68..071ad33 100644
--- a/src/ts/settings.ts
+++ b/src/ts/settings.ts
@@ -6,6 +6,7 @@ const { exec } = require('child_process');
 import $ from 'cash-dom';
 import { i18n } from './i18n';
 import { Genshinlib } from './Genshinlib';
+import { LauncherUI } from './LauncherUI';
 
 $(() => {
 
@@ -37,13 +38,13 @@ $(() => {
     $('#drpc').on('change', () => ipcRenderer.send('rpcstate', {}));
 
     $('#voice-list').on('change', (e) => {
-        let activeVP = Genshinlib.getConfig().lang.voice;
+        let activeVP = Genshinlib.lang.voice;
 
         if (activeVP != e.target.value)
         {
             Genshinlib.updateConfig({
                 lang: {
-                    launcher: Genshinlib.getConfig().lang.launcher,
+                    launcher: Genshinlib.lang.launcher,
                     voice: e.target.value
                 }
             });
@@ -79,12 +80,12 @@ $(() => {
             });
 
             // Send language updates
-            i18n.setLang(e.target.value);
+            LauncherUI.updateLang(e.target.value);
             ipcRenderer.send('change-lang', { 'lang': e.target.value });
 
-            $('*[i18id]').each((i, element) => {
+            /*$('*[i18id]').each((i, element) => {
                 element.innerText = i18n.translate(element.getAttribute('i18id')?.toString()!);
-            });
+            });*/
 
             $(`#language-list option[value="${activeLang}"]`).removeProp('selected');
             $(`#language-list option[value="${e.target.value}"]`).prop('selected', true);