diff --git a/common-docs/javascript/generics.md b/common-docs/javascript/generics.md
index f812b55873f7..cdc2acd2bbd9 100644
--- a/common-docs/javascript/generics.md
+++ b/common-docs/javascript/generics.md
@@ -131,7 +131,7 @@ function identity<T>(arg: T): T {
     return arg;
 }
 
-let myIdentity: <U>(arg: U) => U = identity;
+let myIdentity: <V>(arg: V) => V = identity;
 ```
 
 We can also write the generic type as a call signature of an object literal type: