Dbbench-scaler installed - Unable to run command

I followed Alex Reece post on DBBench and also the tutorial in MemSQL Portal. I was able to setup DBBench.
I have also installed dbbench-scaler following https://github.com/memsql/dbbench-tools instruction.

root@arthurdent-dbbench-dbbench:~# dbbench-scale-test
-su: dbbench-scale-test: command not found

Looks like i need to link that command somehow? Any idea?