diff --git a/configs/3c120_defconfig b/configs/3c120_defconfig
index 550cadd..0470fb1 100644
--- a/configs/3c120_defconfig
+++ b/configs/3c120_defconfig
@@ -28,6 +28,7 @@
 CONFIG_VERSION_VARIABLE=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_SYS_FAULT_ECHO_LINK_DOWN=y
+CONFIG_SYS_RX_ETH_BUFFER=0
 CONFIG_ALTERA_PIO=y
 CONFIG_MISC=y
 CONFIG_ALTERA_SYSID=y