add vorbis cover parameter quotas

diff --git a/src/lib/vorbis.sh b/src/lib/vorbis.sh
index 03f06f6f4298110c9f18bd0a03c051c1c3930545..612fbd01378d2fffaf4025641aff26dcf7482898 100644 (file)
--- a/src/lib/vorbis.sh
+++ b/src/lib/vorbis.sh
@@ -110,7 +110,7 @@ vorbis_encode()
                --will-cite \
                --ungroup \
                --null \
-               vorbis_cover_to_metadata {}
+               vorbis_cover_to_metadata "{}"
        find "$work_path" -name '*.flac' -print0 \
                | sort --zero-terminated \
                | parallel \