1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/development/compilers/polyml/5.6.nix b/pkgs/development/compilers/polyml/5.6.nix
index bcd52380701a..ee841882833c 100644
--- a/pkgs/development/compilers/polyml/5.6.nix
+++ b/pkgs/development/compilers/polyml/5.6.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation {
   pname = "polyml";
   inherit version;
 
-  prePatch = lib.optionalString stdenv.isDarwin ''
+  prePatch = lib.optionalString stdenv.hostPlatform.isDarwin ''
     substituteInPlace configure.ac --replace stdc++ c++
   '';
 
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
     })
   ];
 
-  nativeBuildInputs = lib.optional stdenv.isDarwin autoreconfHook;
+  nativeBuildInputs = lib.optional stdenv.hostPlatform.isDarwin autoreconfHook;
 
   src = fetchurl {
     url = "mirror://sourceforge/polyml/polyml.${version}.tar.gz";