diff --git a/src/system/boot/loader/net/Ethernet.cpp b/src/system/boot/loader/net/Ethernet.cpp
index 2aa472cc86..6e16756bb9 100644
--- a/src/system/boot/loader/net/Ethernet.cpp
+++ b/src/system/boot/loader/net/Ethernet.cpp
@@ -91,7 +91,7 @@ EthernetService::Init(EthernetInterface *interface)
 	fInterface = interface;
 
 	fSendBuffer = fInterface->AllocateSendReceiveBuffer(
-		2 * SEND_BUFFER_SIZE);
+		SEND_BUFFER_SIZE + RECEIVE_BUFFER_SIZE);
 	if (!fSendBuffer)
 		return B_NO_MEMORY;
 	fReceiveBuffer = (uint8*)fSendBuffer + SEND_BUFFER_SIZE;