diff --git a/pkgs/development/r-modules/default.nix b/pkgs/development/r-modules/default.nix
index 292653d75e5..9eb5ffb52cc 100644
--- a/pkgs/development/r-modules/default.nix
+++ b/pkgs/development/r-modules/default.nix
@@ -380,6 +380,7 @@ let
     rmutil = lib.optionals stdenv.isDarwin [ pkgs.libiconv ];
     robustbase = lib.optionals stdenv.isDarwin [ pkgs.libiconv ];
     SparseM = lib.optionals stdenv.isDarwin [ pkgs.libiconv ];
+    hexbin = lib.optionals stdenv.isDarwin [ pkgs.libiconv ];
     svKomodo = [ pkgs.which ];
     nat = [ pkgs.which ];
     nat_templatebrains = [ pkgs.which ];