diff --git a/hosts/xps16/services/btrfs.nix b/hosts/xps16/services/btrfs.nix
index 9fa56a5..62dd2c5 100644
--- a/hosts/xps16/services/btrfs.nix
+++ b/hosts/xps16/services/btrfs.nix
@@ -5,6 +5,7 @@
   systemd.services."btrfs-scrub-${utils.escapeSystemdPath "/"}".serviceConfig = {
     PrivateNetwork = true;
     RestrictFileSystems = [
+      "proc" # Needed by systemd to create fdset with currently open fds
       "sysfs" # Needed to set scrub speed in /sys/fs/btrfs
       "btrfs"
     ];