diff --git a/configs/whistler_defconfig b/configs/whistler_defconfig
index 4874d5b..2c83661 100644
--- a/configs/whistler_defconfig
+++ b/configs/whistler_defconfig
@@ -5,6 +5,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="tegra20-whistler"
 CONFIG_OF_SYSTEM_SETUP=y
 CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="Tegra20 (Whistler) # "
 CONFIG_CMD_BOOTZ=y