diff --git a/pre-inst.sh b/pre-inst.sh
index 079b656..43a43f3 100755
--- a/pre-inst.sh
+++ b/pre-inst.sh
@@ -61,8 +61,9 @@ if [[ "${ID}" == 'debian' ]]; then
 		--yes \
 		mmdebstrap \
 		gdisk \
-		zfsutils-linux \
-		systemd-timesyncd
+		systemd-timesyncd \
+		whois \
+		zfsutils-linux
 elif [[ "${ID}" == 'fedora' ]]; then
 	if [[ "${VERSION_ID}" -lt '41' ]]; then
 		dnf config-manager \