diff --git a/team.mkd b/team.mkd
index c689a10152b3f78930dfcdd05a5a124d265e8fee..99bb0ee7f32151f3e452e868d8a99f8903de8bd3 100644
--- a/team.mkd
+++ b/team.mkd
@@ -43,7 +43,7 @@ If you don't want to be a member of the team, make a PR to remove yourself.
 | Sebastian Graf        | @sgraf812           | Core and STG analysis and optimisation, pattern-match checking, levity polymorphism, performance |
 | Simon Peyton Jones    | @simonpj            | renamer, typechecker, simplifier                      |
 | Sven Tennie           | @supersven          | ghc-heap, closure-related parts of RTS, native code generation backends |
-| Sylvain Henry         | @hsyl20             |                                                       |
+| Sylvain Henry         | @hsyl20             | JS backend, performance, modularity, ghc-bignum       |
 | Teo Camarasu          | @teo                |                                                       |
 | Torsten Schmits       | @torsten.schmits    |Wired-in types, breakpoints, renamer, bytecode         |
 | Vasily Sterekhov      | @ryndubei           |                                                       |