diff --git a/libraries/AP_InertialSensor/examples/VibTest/VibTest.cpp b/libraries/AP_InertialSensor/examples/VibTest/VibTest.cpp
index 7b1b17bfed..f5098e337e 100644
--- a/libraries/AP_InertialSensor/examples/VibTest/VibTest.cpp
+++ b/libraries/AP_InertialSensor/examples/VibTest/VibTest.cpp
@@ -135,7 +135,8 @@ void loop(void)
 
                 struct log_ACCEL pkt = {
                     LOG_PACKET_HEADER_INIT((uint8_t)(LOG_ACC1_MSG+i)),
-                    time_us   : accel_report.timestamp,
+                    time_us   : hal.scheduler->micros64(),
+                    sample_us : accel_report.timestamp,
                     AccX      : accel_report.x,
                     AccY      : accel_report.y,
                     AccZ      : accel_report.z
@@ -158,7 +159,8 @@ void loop(void)
 
                 struct log_GYRO pkt = {
                     LOG_PACKET_HEADER_INIT((uint8_t)(LOG_GYR1_MSG+i)),
-                    time_us   : gyro_report.timestamp,
+                    time_us   : hal.scheduler->micros64(),
+                    sample_us : gyro_report.timestamp,
                     GyrX      : gyro_report.x,
                     GyrY      : gyro_report.y,
                     GyrZ      : gyro_report.z