diff --git a/exercises/tic-tac-toe.livemd b/exercises/tic-tac-toe.livemd
index 537589ca..59943732 100644
--- a/exercises/tic-tac-toe.livemd
+++ b/exercises/tic-tac-toe.livemd
@@ -172,7 +172,7 @@ defmodule TicTacToe do
   ## Examples
 
       iex> board = [
-      ...> [nil, nil, nil], 
+      ...> [nil, nil, nil],
       ...> [nil, nil, nil],
       ...> [nil, nil, nil]
       ...> ]
@@ -263,7 +263,7 @@ defmodule TicTacToe do
   def winner?(board, x) do
     match?([[^x, ^x, ^x], [_, _, _], [_, _, _]], board) or
       match?([[_, _, _], [^x, ^x, ^x], [_, _, _]], board) or
-      match?([[_, _, _], [_, _, _], [_, _, _]], board) or
+      match?([[_, _, _], [_, _, _], [^x, ^x, ^x]], board) or
       match?([[^x, _, _], [^x, _, _], [^x, _, _]], board) or
       match?([[_, ^x, _], [_, ^x, _], [_, ^x, _]], board) or
       match?([[_, _, ^x], [_, _, ^x], [_, _, ^x]], board) or