diff --git a/nixos/modules/services/misc/radicle.nix b/nixos/modules/services/misc/radicle.nix
index 37b59003fdd4..7979bd451b27 100644
--- a/nixos/modules/services/misc/radicle.nix
+++ b/nixos/modules/services/misc/radicle.nix
@@ -148,6 +148,8 @@ in
         description = ''
           An SSH public key (as an absolute file path or directly as a string),
           usually generated by `rad auth`.
+
+          Make sure to not include a comment if your key comes with a comment.
         '';
       };
       node = {