diff --git a/README.md b/README.md
index 3cfb80b..1278ac8 100644
--- a/README.md
+++ b/README.md
@@ -858,9 +858,9 @@ rp.WithoutCurrent().BindTo(this.textComponent);
 
 await rp.WaitAsync(); // wait until next value set
 
-// also exists ToReadOnlyReactiveProperty
+// also exists ToReadOnlyAsyncReactiveProperty
 var rp2 = new AsyncReactiveProperty<int>(99);
-var rorp = rp.CombineLatest(rp2, (x, y) => (x, y)).ToReadOnlyReactiveProperty();
+var rorp = rp.CombineLatest(rp2, (x, y) => (x, y)).ToReadOnlyAsyncReactiveProperty();
 ```
 
 A pull-type asynchronous stream does not get the next values until the asynchronous processing in the sequence is complete. This could spill data from push-type events such as buttons.