diff --git a/build_files/build.sh b/build_files/build.sh
index 4e918c0..32eab81 100755
--- a/build_files/build.sh
+++ b/build_files/build.sh
@@ -106,7 +106,7 @@ dnf5 install -y \
 # Install Niri, the scrollable-tiling window compositor
 # https://yalter.github.io/niri/
 dnf5 -y copr enable avengemedia/dms
-dnf5 -y install niri dms alacritty
+dnf5 -y install niri dms alacritty brightnessctl
 dnf5 -y copr disable avengemedia/dms
 
 # Enable Tailscale service