Remote Deployment toolchain and costume build target

Hi Clion-ers

I'm trying to do remote build via ssh and rsync of my local repo on my remote machine with a custom build command. 

1. I have created the remote toolchain → using ssh and rsync and the remote toolchain connection works fine. 

2. I have created the custom build target which uses the remote toolchain from step 1.  ( the custom target uses external build tool) 

Now when triggering build→project. Clion does not sync the tree to the the remote machine and it calls the external build tool on the local machine. 

? Do I miss something ? Is this supposed to work ?.