diff --git a/lib/conform_utils_code.ex b/lib/conform_utils_code.ex
index 4cab429..e161f95 100644
--- a/lib/conform_utils_code.ex
+++ b/lib/conform_utils_code.ex
@@ -71,7 +71,7 @@ defmodule Conform.Utils.Code do
     acc <> "\n" <> tabs(get_indent) <> keystr <> ": " <> format_function(fndef)
   end
   # Just a tuple
-  defp format_list_item({a, b} = tuple, acc) when not is_atom(a) do
+  defp format_list_item({a, _} = tuple, acc) when not is_atom(a) do
     acc <> "\n" <> tabs(get_indent) <> Macro.to_string(tuple)
   end
   # A key/value pair list item
@@ -240,4 +240,4 @@ defmodule Conform.Utils.Code do
   end)
   defp tabs(x) when x > 50, do: String.duplicate("  ", x)
   defp tabs(_), do: ""
-end
\ No newline at end of file
+end