diff --git a/message_definitions/v1.0/common.xml b/message_definitions/v1.0/common.xml
index befd2e9ba5..48797bb9c3 100644
--- a/message_definitions/v1.0/common.xml
+++ b/message_definitions/v1.0/common.xml
@@ -1100,12 +1100,12 @@
         <param index="7">Empty</param>
       </entry>
       <entry value="209" name="MAV_CMD_DO_MOTOR_TEST" hasLocation="false" isDestination="false">
-        <description>Mission command to perform motor test.</description>
-        <param index="1" label="Instance" minValue="1" increment="1">Motor instance number. (from 1 to max number of motors on the vehicle)</param>
-        <param index="2" label="Throttle Type" enum="MOTOR_TEST_THROTTLE_TYPE">Throttle type.</param>
-        <param index="3" label="Throttle">Throttle.</param>
-        <param index="4" label="Timeout" units="s" minValue="0">Timeout.</param>
-        <param index="5" label="Motor Count" minValue="0" increment="1">Motor count. (number of motors to test to test in sequence, waiting for the timeout above between them; 0=1 motor, 1=1 motor, 2=2 motors...)</param>
+        <description>Command to perform motor test.</description>
+        <param index="1" label="Instance" minValue="1" increment="1">Motor instance number (from 1 to max number of motors on the vehicle).</param>
+        <param index="2" label="Throttle Type" enum="MOTOR_TEST_THROTTLE_TYPE">Throttle type (whether the Throttle Value in param3 is a percentage, PWM value, etc.)</param>
+        <param index="3" label="Throttle">Throttle value.</param>
+        <param index="4" label="Timeout" units="s" minValue="0">Timeout between tests that are run in sequence.</param>
+        <param index="5" label="Motor Count" minValue="0" increment="1">Motor count. Number of motors to test in sequence: 0/1=one motor, 2= two motors, etc. The Timeout (param4) is used between tests.</param>
         <param index="6" label="Test Order" enum="MOTOR_TEST_ORDER">Motor test order.</param>
         <param index="7">Empty</param>
       </entry>