diff --git a/tests/fate-run.sh b/tests/fate-run.sh
index 1b283e9c35..58d5fdbb60 100755
--- a/tests/fate-run.sh
+++ b/tests/fate-run.sh
@@ -158,7 +158,7 @@ md5pipe(){
 md5(){
     encfile="${outdir}/${test}.out"
     cleanfiles="$cleanfiles $encfile"
-    ffmpeg "$@" $(target_path $encfile)
+    ffmpeg -y "$@" $(target_path $encfile)
     do_md5sum $encfile | awk '{print $1}'
 }