diff --git a/configs/qemu-x86_defconfig b/configs/qemu-x86_defconfig
index b13b7ad..6010b61 100644
--- a/configs/qemu-x86_defconfig
+++ b/configs/qemu-x86_defconfig
@@ -26,6 +26,7 @@
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_BOOTP_BOOTFILESIZE=y
 # CONFIG_CMD_NFS is not set
 CONFIG_CMD_TIME=y
 CONFIG_CMD_QFW=y