diff --git a/buildiso.sh b/buildiso.sh
index 1ee5ff1..2e18f3a 100755
--- a/buildiso.sh
+++ b/buildiso.sh
@@ -118,6 +118,7 @@ lb config \
        --archive-areas "main contrib non-free-firmware" \
        --mirror-bootstrap "${mirror_server}/debian" \
        --mirror-chroot-security "${mirror_server}/debian-security" \
+       --debconf-frontend readline \
        --apt-recommends false \
        ${arch_config_append} || fail "Failed to initialize live-build config"
 echo