diff --git a/lib.nix b/lib.nix
index bee8fb1..b83cbc7 100644
--- a/lib.nix
+++ b/lib.nix
@@ -1,7 +1,8 @@
 { pkgs }:
 let
   inherit (pkgs) lib;
-  runtime = ".compose";
+  pwd = pkgs.runCommand "pwd" { } "realpath .compose>$out";
+  runtime = builtins.readFile pwd;
 in
 {
   mkWrapper =