Kali Linux 2.0 unable to install linux-headers-3.18.0-kali3-686-pae

[sla2016]

Hi,

I am not able to get linux-headers-3.18.0-kali3-686-pae installed on linux kali sana after the updarde as follow:
- my source list as follow

 
deb http://http.kali.org/kali sana main non-free contrib
deb http://security.kali.org/kali-security sana/updates main contrib non-free
deb-src http://http.kali.org/kali sana main non-free contrib
deb-src http://security.kali.org/kali-security sana/updates main contrib non-free

- I run the following to update using the following command

apt-get update
apt-get upgrade
apt-get dist-upgrade

- I run the following command to install linux header as follow:

apt-get install linux-headers-3.18.0-kali3-686-pae

and it gives me an error as follow:

E: Unable to locate the package linux-headers-3.18.0-kali3-686-pae

- I run the following command

apt-get install linux-headers-$(uname -r)

and it gives me the same error.

then I notice that during the update is looking into i386 packages and not not amd64 packages as follow:

...
Hit http://http.kali.org sana/updates/nonfree i386 Packages
....

Then I check my system as follow:

uname -a

and it gives me the following:

Linux kalitool 3.18.0-kali3-686-pae #1 SMP Debian 3.18.6-1~kali2 (2015-03-02) i686 GNU/Linux

which indicate that my system is i686 and I am not sure why my update is looking into i368 and so cant find the required linux headers
Please help.