diff --git a/.gitignore b/.gitignore
index e84056c..f25dcec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ kubernetes/pki/out/
 
 # SSH private keys
 kubernetes/ssh-key
+harden/debug/ssh-key
 
 # Generated Ansible inventory
 kubernetes/ansible/inventory.ini