diff --git a/merge.sh b/merge.sh
index bc939e5..17bcafa 100755
--- a/merge.sh
+++ b/merge.sh
@@ -16,7 +16,7 @@ ffmpeg -y -vaapi_device /dev/dri/renderD128 \
 echo reencoding intro to enable fast concat...
 
 function reencode_for_demux_compatibility() {
-	ffmpeg -i "$1" \
+	ffmpeg -y -i "$1" \
 		-pix_fmt yuv420p \
 		-r $framerate \
 		-video_track_timescale $timescale \