diff --git a/web/src/lib/libav/encode.ts b/web/src/lib/libav/encode.ts
index ab0f22e2..3d6cbeca 100644
--- a/web/src/lib/libav/encode.ts
+++ b/web/src/lib/libav/encode.ts
@@ -423,7 +423,6 @@ export default class EncodeLibAV extends LibAVWrapper {
                 {
                     format_name,
                     filename: 'output',
-                    device: true,
                     open: true,
                     codecpars: true
                 }, ostreams