diff --git a/selfdrive/car/card.py b/selfdrive/car/card.py
index a7cd2f5a4a..aab5070111 100755
--- a/selfdrive/car/card.py
+++ b/selfdrive/car/card.py
@@ -161,7 +161,7 @@ class Car:
 
     return CS
 
-  def update_events(self, CS: car.CarState) -> car.CarState:
+  def update_events(self, CS: car.CarState):
     self.events.clear()
 
     CS.events = self.car_events.update(self.CI.CS, self.CS_prev, self.CI.CC, self.CC_prev).to_msg()