ejabberd-2.1.7 and send_message_chat

Hi,

Since I upgrade ejabberd from 2.1.6 to 2.1.7, I can send messages with only one word with send_message_chat. Before I used :
ejabberdctl send_message_chat foo@domain.tld fii@domain.tld \"hi bob\"
and it always worked.

Now ejabberdctl tells me Error: the command "send_message_chat" requires 1 less argument.
I tried with "hi bob" and 'hi bob' but it doesn't work.

Can you help me to fix that please ?

PS: same problem with ejabberd-2.1.8.