diff --git a/nixos/modules/system/boot/stage-1.nix b/nixos/modules/system/boot/stage-1.nix
index f26412103ed6..982f4e4a85c9 100644
--- a/nixos/modules/system/boot/stage-1.nix
+++ b/nixos/modules/system/boot/stage-1.nix
@@ -79,7 +79,7 @@ let
       ln -sf kmod $out/bin/modprobe
 
       # Copy resize2fs if needed.
-      ${optionalString (any (fs: fs.autoResize) config.system.build.fileSystems) ''
+      ${optionalString (any (fs: fs.autoResize) fileSystems) ''
         # We need mke2fs in the initrd.
         copy_bin_and_libs ${pkgs.e2fsprogs}/sbin/resize2fs
       ''}