diff --git a/exercises/practice/phone-number/.meta/example.ex b/exercises/practice/phone-number/.meta/example.ex
index 647e449d9..cf339f58c 100644
--- a/exercises/practice/phone-number/.meta/example.ex
+++ b/exercises/practice/phone-number/.meta/example.ex
@@ -37,7 +37,7 @@ defmodule PhoneNumber do
 
   defp validate_length(number) do
     length = String.length(number)
-    
+ 
     cond do
       length < 10 -> {:error, "must not be fewer than 10 digits"}
       length > 11 -> {:error, "must not be greater than 11 digits"}