diff --git a/README.md b/README.md
index 73ed24fc..94a1ec9a 100644
--- a/README.md
+++ b/README.md
@@ -763,13 +763,13 @@ Other Style Guides
     ));
 
     // bad
-    [1, 2, 3].reduce(x => {
+    [1, 2, 3].map(x => {
       const y = x + 1;
       return x * y;
     });
 
     // good
-    [1, 2, 3].reduce((x) => {
+    [1, 2, 3].map((x) => {
       const y = x + 1;
       return x * y;
     });