diff --git a/main/ZgatewayRF2.ino b/main/ZgatewayRF2.ino
index fd894d8..519ecc9 100644
--- a/main/ZgatewayRF2.ino
+++ b/main/ZgatewayRF2.ino
@@ -81,7 +81,7 @@ void RF2toMQTTdiscovery(JsonObject& data) {
   data["switchType"] = 1; // switchtype = 1 turns switch on.
   serializeJson(data, payloadonstr);
   data["switchType"] = 0; // switchtype = 0 turns switch off.
-  serializeJson(data, payloadonstr);
+  serializeJson(data, payloadoffstr);
   data["switchType"] = org_switchtype; // Restore original switchvalue
 
   String switchname;