diff --git a/configs/r2dplus_defconfig b/configs/r2dplus_defconfig
index cca0156..ddb184b 100644
--- a/configs/r2dplus_defconfig
+++ b/configs/r2dplus_defconfig
@@ -1,4 +1,5 @@
 CONFIG_SH=y
 CONFIG_TARGET_R2DPLUS=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_RTL8139=y
 CONFIG_USE_PRIVATE_LIBGCC=y