diff --git a/lib/elixir/pages/anti-patterns/design-anti-patterns.md b/lib/elixir/pages/anti-patterns/design-anti-patterns.md
index fd1aa23a98..22407c8747 100644
--- a/lib/elixir/pages/anti-patterns/design-anti-patterns.md
+++ b/lib/elixir/pages/anti-patterns/design-anti-patterns.md
@@ -30,7 +30,7 @@ end
 
 ```elixir
 iex> AlternativeInteger.parse("13")
-{13, ""}
+13
 iex> AlternativeInteger.parse("13", discard_rest: true)
 13
 iex> AlternativeInteger.parse("13", discard_rest: false)