diff --git a/cores/esp8266/HardwareSerial.cpp b/cores/esp8266/HardwareSerial.cpp
index c64c13469..1be050e8c 100644
--- a/cores/esp8266/HardwareSerial.cpp
+++ b/cores/esp8266/HardwareSerial.cpp
@@ -60,6 +60,15 @@ void HardwareSerial::end()
     _uart = NULL;
 }
 
+void HardwareSerial::updateBaudRate(unsigned long baud)
+{
+    if(!_uart) {
+        return;
+    }
+
+    uart_set_baudrate(_uart, baud);    
+}
+
 size_t HardwareSerial::setRxBufferSize(size_t size){
     if(_uart) {
         _rx_size = uart_resize_rx_buffer(_uart, size);
@@ -133,8 +142,8 @@ unsigned long HardwareSerial::detectBaudrate(time_t timeoutMillis)
     return detectedBaudrate;
 }
 
-size_t HardwareSerial::readBytes(char* buffer, size_t size)
-{
+size_t HardwareSerial::readBytes(char* buffer, size_t size)
+{
     size_t got = 0;
 
     while (got < size)
@@ -147,7 +156,7 @@ size_t HardwareSerial::readBytes(char* buffer, size_t size)
         got += read(buffer + got, std::min(size - got, avail));
     }
     return got;
-}
+}
 
 #if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_SERIAL)
 HardwareSerial Serial(UART0);
diff --git a/cores/esp8266/HardwareSerial.h b/cores/esp8266/HardwareSerial.h
index 88130ec7b..2d7f631db 100644
--- a/cores/esp8266/HardwareSerial.h
+++ b/cores/esp8266/HardwareSerial.h
@@ -88,6 +88,8 @@ public:
 
     void end();
 
+    void updateBaudRate(unsigned long baud);
+
     size_t setRxBufferSize(size_t size);
     size_t getRxBufferSize()
     {