diff --git a/src/modules/simulator/simulator_mavlink.cpp b/src/modules/simulator/simulator_mavlink.cpp
index 2f67db17c4..3863f21a6c 100644
--- a/src/modules/simulator/simulator_mavlink.cpp
+++ b/src/modules/simulator/simulator_mavlink.cpp
@@ -253,7 +253,7 @@ void Simulator::update_sensors(mavlink_hil_sensor_t *imu)
 
 	RawAirspeedData airspeed = {};
 	airspeed.temperature = imu->temperature;
-	airspeed.diff_pressure = imu->diff_pressure;
+	airspeed.diff_pressure = imu->diff_pressure + 0.001f * (hrt_absolute_time() & 0x01);;
 
 	write_airspeed_data(&airspeed);
 }