diff --git a/README.md b/README.md
index 90449d0..a1e7de5 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Fast strftime for Go
 # SYNOPSIS
 
 ```go
-f := strftime.New(`.... pattern ...`)
+f, err := strftime.New(`.... pattern ...`)
 if err := f.Format(buf, time.Now()); err != nil {
     log.Println(err.Error())
 }