diff --git a/build_script/freifunk_root.sh b/build_script/freifunk_root.sh
index 7623d47249bafe0c73adfeb85cee8cd8a9dd6631..e8bdde6e00109b1514b9d4236b2587ee4118695e 100755
--- a/build_script/freifunk_root.sh
+++ b/build_script/freifunk_root.sh
@@ -16,7 +16,7 @@ install_packages() {
     # Installing QoL packages (1) then gluon deps (2)
     # ! Debian 13-specific !
     apt install -y htop tmux vim sudo mosh \
-                git python3 python-is-python3 python3-setuptools build-essential ecdsautils gawk unzip libncurses5-dev zlib1g-dev libssl-dev libelf-dev wget rsync time qemu-utils
+                git python3 python-is-python3 python3-setuptools build-essential llvm ecdsautils gawk unzip libncurses5-dev zlib1g-dev libssl-dev libelf-dev wget rsync time qemu-utils
 }
 
 create_user() {