diff --git a/cereal b/cereal
index f319a83ab7..3a8e4c9d04 160000
--- a/cereal
+++ b/cereal
@@ -1 +1 @@
-Subproject commit f319a83ab7a902477c786a25aa34077b6f640990
+Subproject commit 3a8e4c9d04b050c057f41d9288ab5ff3f3b02669
diff --git a/selfdrive/thermald/thermald.py b/selfdrive/thermald/thermald.py
index b0214b6351..955bbe8d5b 100755
--- a/selfdrive/thermald/thermald.py
+++ b/selfdrive/thermald/thermald.py
@@ -253,6 +253,7 @@ def thermald_thread(end_event, hw_queue):
     # this drives the thermal status while onroad
     temp_sources.append(max(msg.deviceState.pmicTempC))
     all_comp_temp = all_temp_filter.update(max(temp_sources))
+    msg.deviceState.maxTempC = all_comp_temp
 
     if fan_controller is not None:
       msg.deviceState.fanSpeedPercentDesired = fan_controller.update(all_comp_temp, onroad_conditions["ignition"])