diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 6a6e774..7a1b9ef 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -14,6 +14,8 @@
 CONFIG_CONSOLE_RECORD=y
 CONFIG_CONSOLE_RECORD_OUT_SIZE=0x1000
 CONFIG_SILENT_CONSOLE=y
+CONFIG_PRE_CONSOLE_BUFFER=y
+CONFIG_PRE_CON_BUF_ADDR=0
 CONFIG_CMD_CPU=y
 CONFIG_CMD_LICENSE=y
 CONFIG_CMD_BOOTZ=y