diff --git a/apps/desktop/src/components/ScreenShareViewer.tsx b/apps/desktop/src/components/ScreenShareViewer.tsx
index 4deb48f..5ce09ec 100644
--- a/apps/desktop/src/components/ScreenShareViewer.tsx
+++ b/apps/desktop/src/components/ScreenShareViewer.tsx
@@ -110,8 +110,7 @@ export function ScreenShareViewer({
           type="button"
           onClick={() => watchShare(share.participantId)}
           aria-label={t('app:call.watch_screen', { defaultValue: 'Bildschirm anschauen' })}
-          className="group relative block w-full cursor-pointer overflow-hidden bg-ink-900 focus:outline-none"
-          style={{ aspectRatio: '16 / 9' }}
+          className="group relative block h-full w-full flex-1 cursor-pointer overflow-hidden bg-ink-900 focus:outline-none"
         >
           <BlurredTile avatarUrl={avatarUrl} letter={letter} />
           <div className="absolute inset-0 flex items-center justify-center bg-black/30 transition group-hover:bg-black/40">