diff --git a/snippets/toDecimalMark.md b/snippets/toDecimalMark.md
index 4ad259f35..bb7cadf52 100644
--- a/snippets/toDecimalMark.md
+++ b/snippets/toDecimalMark.md
@@ -3,6 +3,6 @@
 Use `toLocaleString()` to convert a float-point arithmetic to the [Decimal mark](https://en.wikipedia.org/wiki/Decimal_mark) form. It makes a comma separated string from a number.
 
  ```js
-const toDecimalMark = (num) => num.toLocaleString()
+const toDecimalMark = num => num.toLocaleString()
 // toDecimalMark(12305030388.9087) -> "12,305,030,388.9087"
 ```