diff --git a/README.md b/README.md
index b1a3261..f9760c3 100644
--- a/README.md
+++ b/README.md
@@ -196,7 +196,7 @@ void loop() {
 
     JJYReceiver(int pindata);
     JJYReceiver(int pindata,int pinpon);
-    JJYReceiver(int pindata,int pinpon, int pinsel);
+    JJYReceiver(int pindata,int pinsel,int pinpon);
 
 - pindata  JJYデータ入力端子の端子番号