diff --git a/roles/bastion-ssh-config/templates/ssh-bastion.conf b/roles/bastion-ssh-config/templates/ssh-bastion.conf
index ebb380665..60d82d5ab 100644
--- a/roles/bastion-ssh-config/templates/ssh-bastion.conf
+++ b/roles/bastion-ssh-config/templates/ssh-bastion.conf
@@ -16,6 +16,5 @@ Host {{ bastion_ip }}
   ControlPersist 5m
 
 Host {{ vars['hosts'] }}
-  ProxyCommand ssh -W %h:%p {{ real_user }}@{{ bastion_ip }}
-  StrictHostKeyChecking no
+  ProxyCommand ssh -W %h:%p -o StrictHostKeyChecking=no {{ real_user }}@{{ bastion_ip }}
 {% endif %}