diff --git a/pkgs/development/libraries/libofx/default.nix b/pkgs/development/libraries/libofx/default.nix
index 7e5e1cec9258..76276f0ce0fc 100644
--- a/pkgs/development/libraries/libofx/default.nix
+++ b/pkgs/development/libraries/libofx/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, opensp, pkgconfig, libxml2, curl
-, autoconf, automake, libtool, gengetopt }:
+, autoconf, automake, libtool, gengetopt, libiconv }:
 
 stdenv.mkDerivation rec {
   pname = "libofx";
@@ -15,13 +15,13 @@ stdenv.mkDerivation rec {
   preConfigure = "./autogen.sh";
   configureFlags = [ "--with-opensp-includes=${opensp}/include/OpenSP" ];
   nativeBuildInputs = [ pkgconfig libtool autoconf automake gengetopt ];
-  buildInputs = [ opensp libxml2 curl ];
+  buildInputs = [ opensp libxml2 curl ] ++ stdenv.lib.optional stdenv.isDarwin libiconv;
 
   meta = { 
     description = "Opensource implementation of the Open Financial eXchange specification";
     homepage = http://libofx.sourceforge.net/;
     license = "LGPL";
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
     maintainers = [ ];
   };
 }