diff --git a/nixos/modules/services/networking/ssh/sshd.nix b/nixos/modules/services/networking/ssh/sshd.nix
index bebf4e145ca8..0f58536b4b73 100644
--- a/nixos/modules/services/networking/ssh/sshd.nix
+++ b/nixos/modules/services/networking/ssh/sshd.nix
@@ -21,6 +21,8 @@ let
daemon reads in addition to the the user's authorized_keys file.
You can combine the keys and
keyFiles options.
+ Warning: If you are using NixOps then don't use this
+ option since it will replace the key required for deployment via ssh.
'';
};