diff --git a/cores/esp32/HardwareSerial.cpp b/cores/esp32/HardwareSerial.cpp
index fb6300f1900..495e8687379 100644
--- a/cores/esp32/HardwareSerial.cpp
+++ b/cores/esp32/HardwareSerial.cpp
@@ -73,6 +73,11 @@ void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, in
     }
 }
 
+void HardwareSerial::updateBaudRate(unsigned long baud)
+{
+	uartSetBaudRate(_uart, baud);
+}
+
 void HardwareSerial::end()
 {
     if(uartGetDebug() == _uart_nr) {
diff --git a/cores/esp32/HardwareSerial.h b/cores/esp32/HardwareSerial.h
index 8e312c8da4d..89eacf85d0e 100644
--- a/cores/esp32/HardwareSerial.h
+++ b/cores/esp32/HardwareSerial.h
@@ -57,6 +57,7 @@ class HardwareSerial: public Stream
 
     void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false, unsigned long timeout_ms = 20000UL);
     void end();
+    void updateBaudRate(unsigned long baud);
     int available(void);
     int availableForWrite(void);
     int peek(void);