diff --git a/pkgs/by-name/li/libdvdread_4_9_9/package.nix b/pkgs/by-name/li/libdvdread_4_9_9/package.nix
index d7b0ec7b2b9f..0fd58ee464ae 100644
--- a/pkgs/by-name/li/libdvdread_4_9_9/package.nix
+++ b/pkgs/by-name/li/libdvdread_4_9_9/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [ libdvdcss ];
 
-  NIX_LDFLAGS = "-ldvdcss";
+  env.NIX_LDFLAGS = "-ldvdcss";
 
   postInstall = ''
     ln -s dvdread $out/include/libdvdread