Plugin not working in OSX

[rampion]

The plugin doesn't seem to work on my OSX box:

➤ nix --plugin-files /nix/store/w1k1jb3mvsrww072r91910lw9g8nk9xy-nix-doc-0.5.5/lib/libnix_doc_plugin.dylib repl
Welcome to Nix 2.11.1. Type :? for help.

nix-repl> builtins.doc
error: attribute 'doc' missing

       at «string»:1:1:

            1| builtins.doc
             | ^
       Did you mean div?