diff --git a/lib.nix b/lib.nix
index 449b2da..d9c74e7 100644
--- a/lib.nix
+++ b/lib.nix
@@ -1,8 +1,7 @@
 { pkgs }:
 let
   inherit (pkgs) lib;
-  pwd = builtins.getEnv "PWD";
-  runtime = "${pwd}/.compose";
+  runtime = ".compose";
 in
 {
   mkWrapper =
@@ -142,11 +141,12 @@ in
       script = pkgs.writeShellApplication {
         name = "run-postgres";
         text = ''
-          set -euo pipefail
-          export PGDATA=${data_dir} PGHOST=${runtimeDir} PGPORT=${builtins.toString port}
-          mkdir -p ${lib.escapeShellArg runtimeDir}
-          ${setupScript}/bin/setup-postgres
-          exec ${package}/bin/postgres
+            set -euo pipefail
+            export PGDATA=${data_dir} PGHOST=${runtimeDir} PGPORT=${builtins.toString port}
+          pwd
+            mkdir -p ${lib.escapeShellArg runtimeDir}
+            ${setupScript}/bin/setup-postgres
+            exec ${package}/bin/postgres
         '';
       };
     in