diff --git a/nixos/modules/tasks/filesystems/zfs.nix b/nixos/modules/tasks/filesystems/zfs.nix
index 7fee99115329..2c0a165887bd 100644
--- a/nixos/modules/tasks/filesystems/zfs.nix
+++ b/nixos/modules/tasks/filesystems/zfs.nix
@@ -268,7 +268,7 @@ in
       assertions = [
         {
           assertion = config.networking.hostId != null;
-          message = "ZFS requires config.networking.hostId to be set";
+          message = "ZFS requires networking.hostId to be set";
         }
         {
           assertion = !cfgZfs.forceImportAll || cfgZfs.forceImportRoot;