From 891e537592bc6460dc06c44d734a4c4ea47a1ae3 Mon Sep 17 00:00:00 2001
From: Malte Tammena <malte.tammena@pm.me>
Date: Tue, 17 Aug 2021 16:55:50 +0200
Subject: [PATCH] Fix `security.pam.yubico.challengeResponsePath` type

The config is optional and may be left `null`.
---
 nixos/modules/security/pam.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/security/pam.nix b/nixos/modules/security/pam.nix
index 9a6c7d178257..5400ba1ef989 100644
--- a/nixos/modules/security/pam.nix
+++ b/nixos/modules/security/pam.nix
@@ -828,7 +828,7 @@ in
       };
       challengeResponsePath = mkOption {
         default = null;
-        type = types.path;
+        type = types.nullOr types.path;
         description = ''
           If not null, set the path used by yubico pam module where the challenge expected response is stored.