diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index b54e26be..b733354d 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -3082,7 +3082,7 @@ void payload_OK_only()
     blink(50);
     char result = Serial2.read();
 //    Serial2.println(result);
-    Serial1.println(result);
+    Serial.println(result);
     if (result == 'R') {
       Serial2.println("OK");
       delay(100);