diff --git a/lib/maintainers.nix b/lib/maintainers.nix
index a978313c42c1..28636f64aa66 100644
--- a/lib/maintainers.nix
+++ b/lib/maintainers.nix
@@ -575,6 +575,7 @@
   swarren83 = "Shawn Warren <shawn.w.warren@gmail.com>";
   swflint = "Samuel W. Flint <swflint@flintfam.org>";
   swistak35 = "Rafał Łasocha <me@swistak35.com>";
+  symphorien = "Guillaume Girol <symphorien_nixpkgs@xlumurb.eu>";
   szczyp = "Szczyp <qb@szczyp.com>";
   sztupi = "Attila Sztupak <attila.sztupak@gmail.com>";
   taeer = "Taeer Bar-Yam <taeer@necsi.edu>";
diff --git a/pkgs/applications/science/math/giac/default.nix b/pkgs/applications/science/math/giac/default.nix
index d1645bf90107..5f1af4fe9c60 100644
--- a/pkgs/applications/science/math/giac/default.nix
+++ b/pkgs/applications/science/math/giac/default.nix
@@ -59,5 +59,6 @@ stdenv.mkDerivation rec {
     ## xcas is buildable on darwin but there are specific instructions I could
     ## not test
     platforms = platforms.linux;
+    maintainers = [ maintainers.symphorien ];
   };
 }