diff --git a/pkgs/applications/audio/grandorgue/default.nix b/pkgs/applications/audio/grandorgue/default.nix
index 674486a23adb..ab333f83ed53 100644
--- a/pkgs/applications/audio/grandorgue/default.nix
+++ b/pkgs/applications/audio/grandorgue/default.nix
@@ -47,8 +47,6 @@ stdenv.mkDerivation rec {
     "-DINSTALL_DEPEND=OFF"
   ] ++ lib.optional (!includeDemo) "-DINSTALL_DEMO=OFF";
 
-  env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin "-DTARGET_OS_IPHONE=0";
-
   postInstall = lib.optionalString stdenv.hostPlatform.isDarwin ''
     mkdir -p $out/{Applications,bin,lib}
     mv $out/GrandOrgue.app $out/Applications/