diff --git a/pkgs/development/python-modules/jellyfish/default.nix b/pkgs/development/python-modules/jellyfish/default.nix
index 26f34fd5f13a..5afe54567cb4 100644
--- a/pkgs/development/python-modules/jellyfish/default.nix
+++ b/pkgs/development/python-modules/jellyfish/default.nix
@@ -1,10 +1,12 @@
 { lib
+, stdenv
 , buildPythonPackage
 , fetchPypi
 , isPy3k
 , pytest
 , unicodecsv
 , rustPlatform
+, libiconv
 }:
 
 buildPythonPackage rec {
@@ -25,6 +27,10 @@ buildPythonPackage rec {
     cargoSetupHook
   ];
 
+  buildInputs = lib.optionals stdenv.isDarwin [
+    libiconv
+  ];
+
   cargoDeps = rustPlatform.fetchCargoTarball {
     inherit src;
     name = "${pname}-${version}-rust-dependencies";