diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index 60a38a9..78cb27b 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -44,10 +44,10 @@ in
   services.tlp =
     {
       enable = true;
-      extraConfig = ''
-        SATA_LINKPWR_ON_BAT=medium_power
-        SATA_LINKPWR_ON_AC=max_performance
-      '';
+      settings = {
+        "SATA_LINKPWR_ON_BAT" = "medium_power";
+        "SATA_LINKPWR_ON_AC" = "max_performance";
+      };
     };
 
   # Use the systemd-boot EFI boot loader.