diff --git a/pkgs/tools/X11/ffcast/default.nix b/pkgs/tools/X11/ffcast/default.nix
index 1e1e3f888c99..3283cea1db52 100644
--- a/pkgs/tools/X11/ffcast/default.nix
+++ b/pkgs/tools/X11/ffcast/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   configureFlags = [ "--disable-xrectsel" ];
 
   postBuild = ''
-    make DESTDIR="$out" install
+    make install
   '';
 
   meta = with stdenv.lib; {