diff --git a/icedreammusic/liquidsoap/metadata_api.liq b/icedreammusic/liquidsoap/metadata_api.liq
index 7ec99ad..ecc9363 100644
--- a/icedreammusic/liquidsoap/metadata_api.liq
+++ b/icedreammusic/liquidsoap/metadata_api.liq
@@ -57,7 +57,6 @@ def setup_harbor_metadata_api(~metadata_api_port=21338, s) =
                 ("access-control-allow-headers","Origin,X-Requested-With,Content-Type,Accept,Authorization,access-control-allow-headers,access-control-allow-origin"),
                 ("cache-control", "no-store"),
                 ("content-type", cover.mime),
-                ("content-length", string_of(string.length(cover))),
             ], data=string_of(cover))
         else
             http.response(protocol=protocol, code=404, headers=[