Ready command "Somersault" for HeadBreakerKen pet does not work from a macro

Platform: PC
ISP: Comcast
Type of Internet Connection: Cable
Internet Connection Speed: 150Mbit
Date & Time:
Frequency: Every time
Character Name: Larrymc
Race: TaruTaru
World: Shiva
Main Job: BST
Support Job: DNC
Area and Coordinates:
Party or Solo: Either
NPC Name:
Monster Name:
Steps:
1. Create a Macro that contains the line: /pet "Somersault" <me>
2. Call the pet HeadBreakerKen
3. Try to use macro
4. Macro fails with command error.
5. However, you can use the Somersault ready move from the menu, just not from macro
I had another person playing on Xbox verify it fails for him too - so it is not just on PC.

/pet "Somersault " <me> work (with an extra space at the end).