diff --git a/500.wildcard.yaml b/500.wildcard.yaml
index f703607c6..5df565f56 100644
--- a/500.wildcard.yaml
+++ b/500.wildcard.yaml
@@ -73,6 +73,9 @@
 - { setname: "haskell:$1", addflag: wconce, noflag: [wconce,not_haskell], namepat: "ghc[0-9.]+-(.*)", ruleset: sisyphus }
 - { setname: "haskell:$0", addflag: wconce, noflag: [wconce,not_haskell], category: "haskellPackages", ruleset: [ nix ] }
 
+# JavaScript (XXX: probably move nodejs:* here)
+- { setname: "js:$1", addflag: wconce, noflag: [wconce,not_js], namepat: "libjs-(.*)", ruleset: [debuntu] }
+
 # Lua
 - { setname: "lua:$1", addflag: wconce, noflag: [wconce,not_lua], namepat: "lua[0-9]{0,2}-(?:lua[_-]?)?(.+?)", ruleset: [arch,debuntu,fedora,freebsd,gobolinux,mageia,openbsd,opensuse,pkgsrc,void,msys2_mingw] }
 - { setname: "lua:$1", addflag: wconce, noflag: [wconce,not_lua], namepat: "lua[0-9]{2}(?:lua)?(.+?)", ruleset: openbsd }