diff --git a/pkgs/by-name/ab/abbaye-des-morts/package.nix b/pkgs/by-name/ab/abbaye-des-morts/package.nix
index a335bad9da24..6a20fc2ff4eb 100644
--- a/pkgs/by-name/ab/abbaye-des-morts/package.nix
+++ b/pkgs/by-name/ab/abbaye-des-morts/package.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   makeFlags = [
-    "PREFIX=$(out)"
+    "PREFIX=${placeholder "out"}"
     "DESTDIR="
   ];