diff --git a/systems/pbp.nix b/systems/pbp.nix
index d9353d1..893fbd6 100644
--- a/systems/pbp.nix
+++ b/systems/pbp.nix
@@ -9,7 +9,7 @@
   fileSystems = {
     "/" = {
       device = "/dev/disk/by-label/NIXOS_SD";
-      fsType = "ext4";
+      fsType = "btrfs";
       options = [ "noatime" ];
     };
   };