diff --git a/pkgs/tools/text/amber/default.nix b/pkgs/tools/text/amber/default.nix
index 632a318e8620..1cd9e74f1943 100644
--- a/pkgs/tools/text/amber/default.nix
+++ b/pkgs/tools/text/amber/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, fetchFromGitHub, rustPlatform
-, Security
+, libiconv, Security
 }:
 
 rustPlatform.buildRustPackage rec {
@@ -15,7 +15,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "sha256-opRinhTmhZxpAwHNiVOLXL8boQf09Y1NXrWQ6HWQYQ0=";
 
-  buildInputs = lib.optional stdenv.isDarwin Security;
+  buildInputs = lib.optionals stdenv.isDarwin [ libiconv Security ];
 
   meta = with lib; {
     description = "A code search-and-replace tool";