git command to move a folder inside another

I have created a folder common with a bunch of source files and folders.

Now I want to move the common folder into the include folder so it looks like include/common

I tried these:

1. git add include

2. git mv common/ include/

   but it fails with this error

   fatal: bad source, source=myrepo/common, destination=myrepo/include

3. I tried git mv common/ include/common but I get the same error

Any idea how to achieve this?