Can't install VirtualBox additions because apt-get keeps on grabbing pae headers

In /lib/modules/4.4.0-kali1-686, I don't have "build" or "source" directories.

Code:

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# uname -r
4.4.0-kali1-686
# apt-get install linux-headers-4.4.0-kali1-686
...
Note, selecting 'linux-headers-4.4.0-kali1-686-pae' for regex 'linux-headers-4.4.0-kali1-686'
-linux-headers-4.4.0-kali1-686-pae is already the newest version (4.4.2-3kali1)

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According to uname -r, I'm not using the PAE kernel, but apt-get insists on grabbing PAE header files.

I can't install without these headers. How do I proceed?