diff --git a/src_main/io_devices/piethernet.cpp b/src_main/io_devices/piethernet.cpp
index bb93ae45..b4567662 100755
--- a/src_main/io_devices/piethernet.cpp
+++ b/src_main/io_devices/piethernet.cpp
@@ -729,7 +729,7 @@ int PIEthernet::readDevice(void * read_to, int max_size) {
 			//piCoutObj << "readed error" << lerr << errorString().data() << parameters()[DisonnectOnTimeout];
 #ifdef WINDOWS
 			if ((lerr == WSAEWOULDBLOCK || lerr == WSAETIMEDOUT) && !parameters()[DisonnectOnTimeout]) {
-#elif ANDROID
+#elif defined(ANDROID)
 			if ((lerr == EWOULDBLOCK || lerr == EAGAIN || lerr == EINTR) && !parameters()[DisonnectOnTimeout]) {
 #else
 			if ((lerr == EWOULDBLOCK || lerr == EAGAIN) && !parameters()[DisonnectOnTimeout]) {
@@ -886,7 +886,7 @@ void PIEthernet::server_func(void * eth) {
 		int lerr = ethErrorCore();
 #ifdef WINDOWS
 		if (lerr == WSAETIMEDOUT) {
-#elif ANDROID
+#elif defined(ANDROID)
 		if ((lerr == EAGAIN || lerr == EINTR)) {
 #else
 		if (lerr == EAGAIN) {