diff --git a/examples/extension/main.go b/examples/extension/main.go
index 8fbf217..853c0a7 100644
--- a/examples/extension/main.go
+++ b/examples/extension/main.go
@@ -57,7 +57,7 @@ func main() {
 			fmt.Println("Something went wrong!", err)
 		}
 
-		r.Text(fmt.Sprintf("Hello, %v!", p.FirstName), messenger.ResponseType)
+		r.Text(fmt.Sprintf("Hello, %v!", p.FirstName), messenger.ResponseType, "")
 	})
 
 	addr := fmt.Sprintf("%s:%d", *host, *port)