diff --git a/src/knx/device_object.h b/src/knx/device_object.h
index 2f01665..35704f1 100644
--- a/src/knx/device_object.h
+++ b/src/knx/device_object.h
@@ -50,7 +50,7 @@ private:
     uint8_t _prgMode = 0;
     uint16_t _ownAddress = 0;
     uint16_t _manufacturerId = 0xfa; //Default to KNXA
-    uint32_t _bauNumber = 0xaabbccdd;
+    uint32_t _bauNumber = 0;
     char _orderNumber[10] = "";
     uint8_t _hardwareType[6] = { 0, 0, 0, 0, 0, 0};
     uint16_t _version = 0;