From d9e71531a0ed03d296e56dd38f5f1864a55c64c1 Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Thu, 9 Jun 2022 19:06:48 +0200
Subject: [PATCH] lib/modules: Fix missing prefix in extendModules when unset
 in both eval- and extend-

---
 lib/modules.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/modules.nix b/lib/modules.nix
index 0bbf9d43c575..48ddb31508f2 100644
--- a/lib/modules.nix
+++ b/lib/modules.nix
@@ -350,7 +350,7 @@ rec {
           evalModules (evalModulesArgs // {
             modules = regularModules ++ modules;
             specialArgs = evalModulesArgs.specialArgs or {} // specialArgs;
-            prefix = extendArgs.prefix or evalModulesArgs.prefix;
+            prefix = extendArgs.prefix or evalModulesArgs.prefix or [];
             inherit extensionOffset;
           });