diff --git a/msg/ActuatorTest.msg b/msg/ActuatorTest.msg
index f880720da0..221258f906 100644
--- a/msg/ActuatorTest.msg
+++ b/msg/ActuatorTest.msg
@@ -18,4 +18,4 @@ float32 value					# range: [-1, 1], where 1 means maximum positive output,
                    				# and NaN maps to disarmed (stop the motors)
 uint32 timeout_ms				# timeout in ms after which to exit test mode (if 0, do not time out)
 
-uint8 ORB_QUEUE_LENGTH = 12                     # same as MAX_NUM_MOTORS to support code in esc_calibration
+uint8 ORB_QUEUE_LENGTH = 16                     # >= MAX_NUM_MOTORS to support code in esc_calibration