diff --git a/modules/home-manager/desktop/sway/default.nix b/modules/home-manager/desktop/sway/default.nix
index b3950e7..d8fa2ff 100644
--- a/modules/home-manager/desktop/sway/default.nix
+++ b/modules/home-manager/desktop/sway/default.nix
@@ -74,8 +74,8 @@ in
       cpuThermal = {
 
         thermalZone = mkOption {
-          type = types.str;
-          default = "";
+          type = types.int or null;
+          default = null;
           description = "CPU thermal hwmon thermal Zone";
         };
 
diff --git a/modules/home-manager/desktop/sway/includes/files/waybar-style.css b/modules/home-manager/desktop/sway/includes/files/waybar-style.css
index f7cc59f..d1dd1a2 100644
--- a/modules/home-manager/desktop/sway/includes/files/waybar-style.css
+++ b/modules/home-manager/desktop/sway/includes/files/waybar-style.css
@@ -101,7 +101,8 @@ button:hover{
 
 #battery.critical:not(.charging),
 #cpu.critical,
-#memory.critical{
+#memory.critical,
+#temperature.critical{
     border-color: @color-critical;
     color: @color-critical;
 }