diff --git a/modules/battery.nix b/modules/battery.nix
index b7d0f47..fdc9bcc 100644
--- a/modules/battery.nix
+++ b/modules/battery.nix
@@ -1,6 +1,7 @@
 { pkgs, ... }: {
   config = {
     services.auto-cpufreq.enable = true;
+    services.upower.criticalPowerAction = "Hibernate";
 
     environment = {
       systemPackages = with pkgs; [ cpufrequtils powertop ];