diff --git a/scripts/setup-ubuntu.sh b/scripts/setup-ubuntu.sh
index 92a006e93..998234f46 100755
--- a/scripts/setup-ubuntu.sh
+++ b/scripts/setup-ubuntu.sh
@@ -225,6 +225,9 @@ PACKAGES+=" qemu-user-static"
 # Required by picolisp (and maybe a few others in future)
 PACKAGES+=" llvm-12"
 
+# Required by cava
+PACKAGES+=" xxd"
+
 # Do not require sudo if already running as root.
 if [ "$(id -u)" = "0" ]; then
 	SUDO=""