diff --git a/hardware/purism_librem_15.nix b/hardware/purism_librem_15.nix
index c8eb44f..32ac371 100644
--- a/hardware/purism_librem_15.nix
+++ b/hardware/purism_librem_15.nix
@@ -1,4 +1,4 @@
-# Hardware configuration file common to all Purism Librem 15 devices
+# Hardware configuration file common to all Purism Librem 15 ver 3 TPM devices
 
 { config, lib, pkgs, ... }:
 
@@ -42,7 +42,7 @@
 
   nix.maxJobs = lib.mkDefault 4;
 
-  powerManagementdli = {
+  powerManagement = {
     enable = true;
     cpuFreqGovernor = lib.mkDefault "powersave";
   };