2 files changed, 2 insertions, 1 deletions
diff --git a/lib/chessh/schema/key.ex b/lib/chessh/schema/key.ex
index f8c14cf..765c83b 100644
--- a/lib/chessh/schema/key.ex
+++ b/lib/chessh/schema/key.ex
@@ -32,6 +32,7 @@ defmodule Chessh.Key do
     if is_tuple(key) do
       case key do
         {pub, [opts]} -> [{pub, [opts]}]
+        {pub, []} -> [{pub, [comment: '']}]
         key -> [{key, [comment: '']}]
       end
       |> :ssh_file.encode(:openssh_key)
diff --git a/lib/chessh/schema/player.ex b/lib/chessh/schema/player.ex
index d04ed3e..5b7b904 100644
--- a/lib/chessh/schema/player.ex
+++ b/lib/chessh/schema/player.ex
@@ -49,7 +49,7 @@ defmodule Chessh.Player do
   defp validate_username(changeset) do
     changeset
     |> validate_required([:username])
-    |> validate_length(:username, min: 2, max: 12)
+    |> validate_length(:username, min: 2, max: 16)
     |> validate_format(:username, ~r/^[a-zA-Z0-9_\-]*$/,
       message: "only letters, numbers, underscores, and hyphens allowed"
     )