diff --git a/uavcan/equipment/actuator/Command.uavcan b/uavcan/equipment/actuator/Command.uavcan
index e836721..5c46755 100644
--- a/uavcan/equipment/actuator/Command.uavcan
+++ b/uavcan/equipment/actuator/Command.uavcan
@@ -12,6 +12,7 @@ uint8 COMMAND_TYPE_UNITLESS     = 0     # [-1, 1]
 uint8 COMMAND_TYPE_POSITION     = 1     # meter or radian
 uint8 COMMAND_TYPE_FORCE        = 2     # Newton or Newton metre
 uint8 COMMAND_TYPE_SPEED        = 3     # meter per second or radian per second
+uint8 COMMAND_TYPE_PWM          = 4     # PWM microsecond signal
 uint8 command_type
 
 #