diff --git a/Setup-Computer-Debian-12.md b/Setup-Computer-Debian-12.md
index d33f9c2..1453b5c 100644
--- a/Setup-Computer-Debian-12.md
+++ b/Setup-Computer-Debian-12.md
@@ -21,6 +21,8 @@ NTP=d.psi.ch
 ```
 sudo apt-get install fakeroot build-essential cvs flex bison openssh-server git-core geany synaptic joe jed subversion autoconf-archive cmake libreadline-dev libhdf5-dev pkg-config libxml2-dev libzmq3-dev   liblog4cpp5-dev libelf-dev libssl-dev libarchive-dev libgtkmm-3.0-dev libatkmm-1.6-dev libglibmm-2.4-dev libncurses5-dev libxerces-c-dev libboost-dev  xsltproc cifs-utils xterm  meld default-jre autogen autoconf libtool libqwt-qt5-dev  libqt5webkit5-dev rsync libboost-all-dev strace python3-numpy python3-pip python3-h5py python3-zmq python3-matplotlib python3-attr python3-scipy hdf5-tools dbus-x11 nfs-common nfs-kernel-server nfs4-acl-tools 
 
+sudo apt-get install linux-image-rt-amd64 linux-headers-rt-amd64
+
 pip3 install pyepics
 ```