I think I know the answer to this but I just want to be sure. I have a supervisor who doesn't have a good level of English; sometimes he worries me with his corrections.

I was writing:

Here, we will use Kukhtarev's model to describe the ...

But he corrected me:

Here, we will use the Kukhtarev's model to describe the ...

I know this is wrong. However, can someone confirm this and explain why.