diff --git a/ssh/.ssh/config b/ssh/.ssh/config
index 07161f4..9415f6e 100644
--- a/ssh/.ssh/config
+++ b/ssh/.ssh/config
@@ -18,6 +18,8 @@ Host heroku.com
 
 Host *.doofnet.uk
     ForwardAgent yes
+    IdentitiesOnly yes
+    IdentityFile ~/.ssh/id_ed25519_home
 
 Host *.tensixtyone.com
     ForwardAgent yes