diff --git a/nixos/boxes/foureighty/default.nix b/nixos/boxes/foureighty/default.nix
index d031e9ee..7c981a37 100644
--- a/nixos/boxes/foureighty/default.nix
+++ b/nixos/boxes/foureighty/default.nix
@@ -38,7 +38,27 @@
   hardware.trackpoint.enable = true;
   services.hardware.bolt.enable = true;
   boot.extraModprobeConfig = "options thinkpad_acpi fan_control=1";
-  services.thinkfan.enable = true;
+  services.thinkfan = {
+    enable = true;
+    sensors = [
+      {
+        type = "hwmon";
+        query = "/sys/class/hwmon";
+        name = "coretemp";
+        indices = [ 1 2 3 ];
+      }
+      {
+        type = "hwmon";
+        query = "/sys/devices/platform/thinkpad_hwmon/hwmon";
+        indices = [ 1 ];
+      }
+      {
+        type = "tpacpi";
+        query = "/proc/acpi/ibm/thermal";
+        indices = [ 0 ];
+      }
+    ];
+  };
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
   hardware.video.hidpi.enable = lib.mkDefault true;