diff --git a/nixos/modules/services/misc/paperless.nix b/nixos/modules/services/misc/paperless.nix
index 9df4e99ff9a5..f7ca6c2717bc 100644
--- a/nixos/modules/services/misc/paperless.nix
+++ b/nixos/modules/services/misc/paperless.nix
@@ -621,7 +621,7 @@ in
             PrivateNetwork = false;
           };
           environment = env // {
-            PYTHONPATH = "${cfg.package.python.pkgs.makePythonPath cfg.package.propagatedBuildInputs}:${cfg.package}/lib/paperless-ngx/src";
+            PYTHONPATH = "${cfg.package.python.pkgs.makePythonPath cfg.package.passthru.dependencies}:${cfg.package}/lib/paperless-ngx/src";
           };
           # Allow the web interface to access the private /tmp directory of the server.
           # This is required to support uploading files via the web interface.