diff --git a/src/lib/drivers/rangefinder/PX4Rangefinder.hpp b/src/lib/drivers/rangefinder/PX4Rangefinder.hpp
index 140444149e..fc5d7b3b24 100644
--- a/src/lib/drivers/rangefinder/PX4Rangefinder.hpp
+++ b/src/lib/drivers/rangefinder/PX4Rangefinder.hpp
@@ -70,5 +70,5 @@ public:
 
 private:
 	uORB::PublicationMultiData<distance_sensor_s> _distance_sensor_pub{ORB_ID(distance_sensor)};
-	hrt_abstime _q_update_now;
+	hrt_abstime _q_update_now {};
 };