diff --git a/libs/main/io_devices/piserial.cpp b/libs/main/io_devices/piserial.cpp
index 3c350c4d..fb86d170 100644
--- a/libs/main/io_devices/piserial.cpp
+++ b/libs/main/io_devices/piserial.cpp
@@ -389,7 +389,9 @@ int PISerial::convertSpeed(PISerial::Speed speed) {
 	case S2400: return B2400;
 	case S4800: return B4800;
 	case S9600: return B9600;
+#ifdef WINDOWS
 	case S14400: return B14400;
+#endif
 	case S19200: return B19200;
 	case S38400: return B38400;
 	case S57600: return B57600;
@@ -880,7 +882,11 @@ void PISerial::configureFromVariantDevice(const PIPropertyStorage & d) {
 PIVector<int> PISerial::availableSpeeds() {
 	PIVector<int> spds;
 	spds << 50 << 75 << 110 << 300 << 600 << 1200 << 2400 << 4800 <<
-			9600 << 14400 << 19200 << 38400 << 57600 << 115200 << 230400 <<
+			9600 <<
+#ifdef WINDOWS
+					14400 <<
+#endif
+							 19200 << 38400 << 57600 << 115200 << 230400 <<
 			460800 << 500000 << 576000 << 921600 << 1000000 << 1152000 <<
 			1500000 << 2000000 << 2500000 << 3000000 << 3500000 << 4000000;
 	return spds;