diff --git a/configs/Cubietruck_defconfig b/configs/Cubietruck_defconfig
index 5c23bc7..fa48331 100644
--- a/configs/Cubietruck_defconfig
+++ b/configs/Cubietruck_defconfig
@@ -1,6 +1,7 @@
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_GMAC,RGMII,AHCI,SATAPWR=SUNXI_GPH(12),USB_EHCI"
 CONFIG_FDTFILE="sun7i-a20-cubietruck.dtb"
+CONFIG_GMAC_TX_DELAY=1
 CONFIG_VIDEO_VGA=y
 CONFIG_ARM=y
 CONFIG_ARCH_SUNXI=y