diff --git a/core/network.c b/core/network.c
index 4dd6257a..89697e76 100644
--- a/core/network.c
+++ b/core/network.c
@@ -101,7 +101,7 @@ void networking_poll()
 	uint8_t data[MAX_UDP_PACKET_SIZE];
 	uint32_t length;
 
-	while (receivepacket(&ip_port, data, &length))
+	while (receivepacket(&ip_port, data, &length) != -1)
 	{
 		if (length < 1) continue;
 		if (!packethandlers[data[0]]) continue;