diff --git a/src/IBusBM.cpp b/src/IBusBM.cpp
index 624c11a..bd5f378 100644
--- a/src/IBusBM.cpp
+++ b/src/IBusBM.cpp
@@ -90,7 +90,7 @@ void IBusBM::begin(HardwareSerial &serial, int8_t timerid, int8_t rxPin, int8_t
   #ifdef ARDUINO_ARCH_ESP32
     serial.begin(115200, SERIAL_8N1, rxPin, txPin);
   #else
-    serial.begin(115200, SERIAL_8N1);
+    serial.begin(115200);
   #endif
 
   this->stream = &serial;