Wrong kernel headers for Kali 1.0.9

Kali 1.0.9 on Raspberry Pi B+. I am trying to install kernel headers for things that need them (e.g. wireless drivers).
The system identifies its kernel (uname -r) as 3.12.26.

Yet, apt-get only offers headers for kernel 3.14:

$ apt-get update
$ apt-cache search kernel | grep header
...
linux-headers-3.14-kali1-all - All header files for Linux 3.14 (meta-package)
linux-headers-3.14-kali1-all-armel - All header files for Linux 3.14 (meta-package)
linux-headers-3.14-kali1-common - Common header files for Linux 3.14-kali1
...


These packages do install, but anything that relies on kernel headers still doesn't work, since the headers are for another kernel version.
What gives ?
Is this an error in Kali repositories, or am I missing something ?