diff --git a/README.md b/README.md
index d9285b1..1063f69 100644
--- a/README.md
+++ b/README.md
@@ -60,8 +60,8 @@ a `Deserializer` is responsible for transforming the target serialization format
 
 ## `Serialize`
 ```ts
-interface Serialize<T> {
-  <U>(serializer: ISerializer<T>, value: U): T
+interface Serialize<T, U> {
+  (serializer: ISerializer<T>, value: U): T
 }
 ```