diff --git a/snippets/indexOfAll.md b/snippets/indexOfAll.md
index a4f321f4a..9930b06b6 100644
--- a/snippets/indexOfAll.md
+++ b/snippets/indexOfAll.md
@@ -6,7 +6,7 @@ Use `Array.reduce()` to loop over elements and store indices for matching elemen
 Return the array of indices.
 
 ```js
-const indexOfAll = (arr, val) => (arr, val) =>
+const indexOfAll = (arr, val) =>
   arr.reduce((acc, el, i) => (el === val ? [...acc, i] : acc), []);
 ```