diff --git a/vsphere/itix-ks.cfg b/vsphere/itix-ks.cfg
index 4d54a21..662a9b5 100644
--- a/vsphere/itix-ks.cfg
+++ b/vsphere/itix-ks.cfg
@@ -34,9 +34,9 @@ vim-cmd hostsvc/start_esx_shell
 # Suppress Shell Warning in Host
 esxcli system settings advanced set -o /UserVars/SuppressShellWarning -i 1
 
-# inject SSH authorized keys
-echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPR1tt58X0+vbvsCR12gMAqr+g7vjt1Fx/qqz9EiboIs nicolas.masse@itix.fr" >> /etc/ssh/keys-root/authorized_keys
-echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFW62WJXI1ZCMfNA4w0dMpL0fsldhbEfULNGIUB0nQui nmasse@redhat.com" >> /etc/ssh/keys-root/authorized_keys
+# inject SSH authorized keys (RSA keys only!)
+echo "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDK64XJZJIVf0G7lbPrVbe/ll39O1HNcMnkxbJCJ+k4aND/yiyYcUGBpjtYsfkX7ms2jVNFZ5S59tqeddqd2nzeL8R1vcC/CKxFhbCRL6mWkx3ANcsUhgFmdvjemCwcsDwAQQynh+MhhoCpFCU41mM0T9jT2TfuZx1Zt1ATNJeZ3epOfYvYntefu5LsLQ/8W2XDMtoCvgMLCWyiPZKqdpcOZKKDwB/Vat01T9oDV9h8B/SCA7YTm0Y4nJJnnJ3L+Bpt9R9nbjMZc0fe7EIyybbS7T+cleQ35L0oEaGN/sgrzlD+S4yXKFEof4Rv8d5wR1JBKHF+/VHpRMSJNB1VWpL5 nicolas.masse@itix.fr" >> /etc/ssh/keys-root/authorized_keys
+echo "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDa4sNbMV9sx00+8vjvJ0Qr8vZJ2BeezeaPEbsW9iHHuRZkYDKZKPxfZBuqU7J2aIZJ15Bufzn/jkGVZFkOSIN2FdY8wgxHXABHadp0aXsEbHcbFyBQCSk4oPvTR8HCevMWGAdSo5LoJe+jmVTUhKPb+k+mAj1kNKCavRLnw6x0ZtDaUh5QYaQkMW+wjGywfQQuM2kpilGaU7+aUYqzfvaj308ATTv3NMyzsB+woFOYn5RZhZuvEjDdTOaD/1ud5+WP+WSNOttA0IXfHDIiMo40MdIvZIZVz1bdc9Lu+I5ct/+MhPqC7k7L2cxBmDADOhxBNvGZTQSYxcO5ViTyGe+1 nmasse@redhat.com" >> /etc/ssh/keys-root/authorized_keys
 
 # Enable NTP
 esxcli system ntp set -s pool.ntp.org