diff --git a/live-build/ubuntu-cpc/hooks.d/base/vagrant.binary b/live-build/ubuntu-cpc/hooks.d/base/vagrant.binary
index efcd3d4b..19e8738b 100755
--- a/live-build/ubuntu-cpc/hooks.d/base/vagrant.binary
+++ b/live-build/ubuntu-cpc/hooks.d/base/vagrant.binary
@@ -66,7 +66,8 @@ trap cleanup_vagrant EXIT
 ### https://github.com/hashicorp/vagrant/tree/main/keys
 ##########################
 
-ssh-keygen -t ed25519 -C "ubuntu_vagrant_insecure_key" -b 4096 -f ${box_d}/vagrant_insecure_key
+ssh-keygen -t ed25519 -C "ubuntu_vagrant_insecure_key" -b 4096 \
+	-f ${box_d}/vagrant_insecure_key -N ""
 
 pub_key=$(cat ${box_d}/vagrant_insecure_key.pub)