diff --git a/docs/rules/jsx-key.md b/docs/rules/jsx-key.md
index d9f2f3078b..0426f9f81a 100644
--- a/docs/rules/jsx-key.md
+++ b/docs/rules/jsx-key.md
@@ -40,7 +40,7 @@ data.map((x) => <Hello key={x.id}>{x}</Hello>);
 ```
 
 ```jsx
-Array.from([1, 2, 3], (x) => <Hello key={x.id}>{x}</Hello>);
+Array.from([1, 2, 3], (x) => <Hello key={x}>{x}</Hello>);
 ```
 
 ```jsx