diff --git a/pkgs/applications/editors/emacs-modes/magit/default.nix b/pkgs/applications/editors/emacs-modes/magit/default.nix
index 093a5420a5ee..4a8d8b20d04a 100644
--- a/pkgs/applications/editors/emacs-modes/magit/default.nix
+++ b/pkgs/applications/editors/emacs-modes/magit/default.nix
@@ -20,6 +20,7 @@ stdenv.mkDerivation rec {
     makeFlagsArray=(
       PREFIX="$out"
       EFLAGS="-L ${gitModes}/share/emacs/site-lisp"
+      lispdir="$out/share/emacs/site-lisp"
     )
   '';