diff --git a/src/mares_iconhd.c b/src/mares_iconhd.c
index dc40c85..9ac25d7 100644
--- a/src/mares_iconhd.c
+++ b/src/mares_iconhd.c
@@ -33,6 +33,12 @@
 	rc == -1 ? DEVICE_STATUS_IO : DEVICE_STATUS_TIMEOUT \
 )
 
+#if defined(_WIN32) || defined(__APPLE__)
+#define BAUDRATE 256000
+#else
+#define BAUDRATE 230400
+#endif
+
 #define ICONHD    0x14
 #define ICONHDNET 0x15
 
@@ -228,7 +234,7 @@ mares_iconhd_device_open (device_t **out, const char* name)
 	}
 
 	// Set the serial communication protocol (256000 8N1).
-	rc = serial_configure (device->port, 256000, 8, SERIAL_PARITY_NONE, 1, SERIAL_FLOWCONTROL_NONE);
+	rc = serial_configure (device->port, BAUDRATE, 8, SERIAL_PARITY_NONE, 1, SERIAL_FLOWCONTROL_NONE);
 	if (rc == -1) {
 		WARNING ("Failed to set the terminal attributes.");
 		serial_close (device->port);