diff --git a/Software/src/devboard/safety/safety.cpp b/Software/src/devboard/safety/safety.cpp
index 4a98f806..927f4bab 100644
--- a/Software/src/devboard/safety/safety.cpp
+++ b/Software/src/devboard/safety/safety.cpp
@@ -41,7 +41,7 @@ void update_machineryprotection() {
     clear_event(EVENT_BATTERY_FROZEN);
   }
 
-  if (datalayer.battery.status.temperature_max_dC - datalayer.battery.status.temperature_min_dC >
+  if (labs(datalayer.battery.status.temperature_max_dC - datalayer.battery.status.temperature_min_dC) >
       BATTERY_MAX_TEMPERATURE_DEVIATION) {
     set_event_latched(EVENT_BATTERY_TEMP_DEVIATION_HIGH,
                       datalayer.battery.status.temperature_max_dC - datalayer.battery.status.temperature_min_dC);