diff --git a/pkgs/games/exult/default.nix b/pkgs/games/exult/default.nix
index 27ffcf2e742..649d69c6fe6 100644
--- a/pkgs/games/exult/default.nix
+++ b/pkgs/games/exult/default.nix
@@ -30,6 +30,8 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  makeFlags = [ "DESTDIR=$(out)" ];
+
   postInstall =
     ''
       mkdir -p $out/share/exult/music