diff --git a/common/ubuntu_security.sh b/common/ubuntu_security.sh
index f2641c3..03bb54b 100644
--- a/common/ubuntu_security.sh
+++ b/common/ubuntu_security.sh
@@ -42,7 +42,7 @@
 usermod -p '!' root
 
 # Drop default 'ubuntu' user
-userdel -rf ubuntu
+userdel -rf ubuntu || true
 
 # Disable SSH password authentication and permit root login
 sed -i 's|[#]*PasswordAuthentication yes|PasswordAuthentication no|g' /etc/ssh/sshd_config