diff --git a/src/components/Scanner.astro b/src/components/Scanner.astro
index 0384313..baccac3 100644
--- a/src/components/Scanner.astro
+++ b/src/components/Scanner.astro
@@ -912,7 +912,7 @@ body {
 
             codeReader = new BrowserMultiFormatReader();
             waitForElement('scanner-video', () => {
-              codeReader!.decodeFromVideoDevice(undefined, 'scanner-video', (result: { getText: Function }, err: unknown) => {
+              codeReader!.decodeFromVideoDevice(null, 'scanner-video', (result, _err) => {
                   if (result) {
                       const code = result.getText();
                       barcodeDisplay.textContent = code;