Boot a Mac out of Target Disk mode

so here's a question...

I'm remotely connected to a Mac on the other side of the world through screen sharing.
Connected to this Mac is another Mac by Target Disk Mode.
I've made some changes to the Mac connected by TDM and now I want to restart it.

but... how...

I can eject the TDM mode Mac, but that won't take it out of TDM.
I can restart the Mac I'm connected to, but the other mac would still be connected by TDM..

Any ideas?

 

Thought so. Thanks, guys.