diff --git a/arch/arm/mach-tegra/tegra30/Kconfig b/arch/arm/mach-tegra/tegra30/Kconfig
index 3abdc7b..e78331e 100644
--- a/arch/arm/mach-tegra/tegra30/Kconfig
+++ b/arch/arm/mach-tegra/tegra30/Kconfig
@@ -2,6 +2,7 @@
 
 choice
 	prompt "Tegra30 board select"
+	optional
 
 config TARGET_APALIS_T30
 	bool "Toradex Apalis T30 board"