diff --git a/alpine/alpine-essentials.sh b/alpine/alpine-essentials.sh
index 40843c9..03e81ce 100755
--- a/alpine/alpine-essentials.sh
+++ b/alpine/alpine-essentials.sh
@@ -11,7 +11,7 @@ echo "http://dl-cdn.alpinelinux.org/alpine/latest-stable/community" >> /etc/apk/
 
 # apk update and install essentials
 apk update && apk upgrade
-apk add hstr htop nano sudo pwgen curl wget git bash-doc bash-completion openssh iputils restic --no-cache
+apk add ncdu hstr htop nano sudo pwgen curl wget git bash-doc bash-completion openssh iputils restic --no-cache
 
 # check if vm or lxc
 if [[ ! -f /dev/.lxc-boot-id ]]