diff --git a/src/borgstore/backends/sftp.py b/src/borgstore/backends/sftp.py
index d8b8c82..d626427 100644
--- a/src/borgstore/backends/sftp.py
+++ b/src/borgstore/backends/sftp.py
@@ -41,7 +41,7 @@ def _connect(self):
         ssh = paramiko.SSHClient()
         ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
         user_config_path = Path("~/.ssh/config").expanduser()
-        system_config_path = Path("/etc/ssh/ssh_config")
+        system_config_path = Path("/etc/ssh/ssh_config")  # no support yet for ssh_config.d/*
         ssh_config = paramiko.SSHConfig()
         try:
             with open(user_config_path) as f: