diff --git a/src/serialport_win.cpp b/src/serialport_win.cpp
index f6be1d86b..9213bae60 100644
--- a/src/serialport_win.cpp
+++ b/src/serialport_win.cpp
@@ -89,11 +89,28 @@ void EIO_Open(uv_work_t* req) {
   dcb.Parity = NOPARITY;
   dcb.ByteSize = 8;
   dcb.StopBits = ONESTOPBIT;
-  dcb.fInX = FALSE;
-  dcb.fOutX = FALSE;
+  
+  
   dcb.fOutxDsrFlow = FALSE;
   dcb.fOutxCtsFlow = FALSE;
-  dcb.fRtsControl = RTS_CONTROL_ENABLE;
+
+  if (data->xon) {
+    dcb.fOutX = TRUE;
+  } else {
+    dcb.fOutX = FALSE;
+  }
+
+  if (data->xoff) {
+    dcb.fInX = TRUE;
+  } else {
+    dcb.fInX = FALSE;
+  }
+
+  if (data->rtscts) {
+    dcb.fRtsControl = RTS_CONTROL_ENABLE;
+  } else {
+    dcb.fRtsControl = RTS_CONTROL_DISABLE;
+  }
 
   dcb.fBinary = true;
   dcb.BaudRate = data->baudRate;