diff --git a/pkgs/build-support/rust/build-rust-package/default.nix b/pkgs/build-support/rust/build-rust-package/default.nix
index 2d215a4eb010..91cffcb3fb5f 100644
--- a/pkgs/build-support/rust/build-rust-package/default.nix
+++ b/pkgs/build-support/rust/build-rust-package/default.nix
@@ -12,7 +12,6 @@
   cargo-auditable,
   buildPackages,
   rustc,
-  libiconv,
   windows,
 }:
 
@@ -135,10 +134,7 @@ lib.extendMkDerivation {
           cargo
         ];
 
-      buildInputs =
-        buildInputs
-        ++ lib.optionals stdenv.hostPlatform.isDarwin [ libiconv ]
-        ++ lib.optionals stdenv.hostPlatform.isMinGW [ windows.pthreads ];
+      buildInputs = buildInputs ++ lib.optionals stdenv.hostPlatform.isMinGW [ windows.pthreads ];
 
       patches = cargoPatches ++ patches;