diff --git a/server/drivers/hd44780-serial.c b/server/drivers/hd44780-serial.c
index 448b11d..de69538 100644
--- a/server/drivers/hd44780-serial.c
+++ b/server/drivers/hd44780-serial.c
@@ -67,8 +67,10 @@ unsigned int bitrate_conversion[][2] = {
 	{ 38400, B38400 },
 	{ 57600, B57600 },
 	{ 115200, B115200 },
-	{ 230400, B230400 },
-	{ 460800, B460800 }
+	{ 230400, B230400 }
+#if defined(B460800)	
+	, { 460800, B460800 }
+#endif
 #if defined(B500000)
 	, { 500000, B500000 }
 #endif