diff --git a/pkgs/development/compilers/gcc/4.9/default.nix b/pkgs/development/compilers/gcc/4.9/default.nix
index fc9e72812501..f041252495a6 100644
--- a/pkgs/development/compilers/gcc/4.9/default.nix
+++ b/pkgs/development/compilers/gcc/4.9/default.nix
@@ -496,8 +496,7 @@ stdenv.mkDerivation ({
     platforms =
       stdenv.lib.platforms.linux ++
       stdenv.lib.platforms.freebsd ++
-      stdenv.lib.platforms.illumos ++
-      stdenv.lib.platforms.darwin;
+      stdenv.lib.platforms.illumos;
   };
 }