diff --git a/README.md b/README.md
index ebb1d1a..3c10947 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,8 @@ err := ewrap.New("database connection failed")
 if err != nil {
     return ewrap.Wrap(err, "failed to process request")
 }
+
+err = ewrap.Newf("failed to process request id: %v", requestID)
 ```
 
 ### Advanced Error Context