diff --git a/files_to_inject/preseeds/default.preseed b/files_to_inject/preseeds/default.preseed
index 3106163..4438c9e 100755
--- a/files_to_inject/preseeds/default.preseed
+++ b/files_to_inject/preseeds/default.preseed
@@ -66,6 +66,11 @@ d-i preseed/late_command string \
     in-target mkdir -p /etc/apt/keyrings ; \
     in-target wget -qO /etc/apt/keyrings/xanmod-archive-keyring.gpg https://dl.xanmod.org/archive.key ; \
     in-target sh -c "echo 'deb [signed-by=/etc/apt/keyrings/xanmod-archive-keyring.gpg] http://deb.xanmod.org trixie main' > /etc/apt/sources.list.d/xanmod.list" ; \
+    in-target apt-get install -y gpg ; \
+    in-target gpg --keyserver keyserver.ubuntu.com --recv-keys EB8B81E14DA65431D7504EA8F63F0F2B90935439 ; \
+    in-target gpg --export EB8B81E14DA65431D7504EA8F63F0F2B90935439 | in-target tee /etc/apt/trusted.gpg.d/kisak.gpg ; \
+    in-target sh -c "echo 'deb https://ppa.launchpadcontent.net/kisak/kisak-mesa/ubuntu plucky main' >> /etc/apt/sources.list.d/kisak-mesa.list" ; \
+    in-target sh -c "echo 'deb-src https://ppa.launchpadcontent.net/kisak/kisak-mesa/ubuntu plucky main' >> /etc/apt/sources.list.d/kisak-mesa.list" ; \
     in-target apt-get update ; \
     in-target apt-get install -y linux-xanmod-x64v3 || true ; \
     in-target flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo ; \