diff --git a/krebs/3modules/github-hosts-sync.nix b/krebs/3modules/github-hosts-sync.nix
index d385ec355..590708aa8 100644
--- a/krebs/3modules/github-hosts-sync.nix
+++ b/krebs/3modules/github-hosts-sync.nix
@@ -22,6 +22,7 @@ let
     ssh-identity-file = mkOption {
       type = types.suffixed-str [".ssh.id_ed25519" ".ssh.id_rsa"];
       default = toString <secrets/github-hosts-sync.ssh.id_ed25519>;
+      defaultText = "‹secrets/github-hosts-sync.ssh.id_ed25519›";
     };
     url = mkOption {
       type = types.str;