diff --git a/README.md b/README.md
index a050fb089..ee3f560f7 100644
--- a/README.md
+++ b/README.md
@@ -101,8 +101,8 @@ const anagrams = str => {
 Use `Array.concat()` to concatenate and array with any additional arrays and/or values, specified in `args`.
 
 ```js
-const ArrayConcat = (arr, ...args) => arr.concat(...args); 
-// ArrayConcat([1], [1, 2, 3, [4]]) -> [1, 2, 3, [4]]
+const arrayConcat = (arr, ...args) => arr.concat(...args);
+// arrayConcat([1], [1, 2, 3, [4]]) -> [1, 1, 2, 3, [4]]
 ```
 
 ### Array difference
diff --git a/snippets/array-concatenation.md b/snippets/array-concatenation.md
index 39d978d6e..b7b26ea26 100644
--- a/snippets/array-concatenation.md
+++ b/snippets/array-concatenation.md
@@ -3,6 +3,6 @@
 Use `Array.concat()` to concatenate and array with any additional arrays and/or values, specified in `args`.
 
 ```js
-const ArrayConcat = (arr, ...args) => arr.concat(...args); 
-// ArrayConcat([1], [1, 2, 3, [4]]) -> [1, 2, 3, [4]]
+const arrayConcat = (arr, ...args) => arr.concat(...args);
+// arrayConcat([1], [1, 2, 3, [4]]) -> [1, 1, 2, 3, [4]]
 ```