diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig
index 291c511..7644b8d 100644
--- a/arch/arm/mach-orion5x/Kconfig
+++ b/arch/arm/mach-orion5x/Kconfig
@@ -2,6 +2,7 @@
 
 choice
 	prompt "Marvell Orion board select"
+	optional
 
 config TARGET_EDMINIV2
 	bool "LaCie Ethernet Disk mini V2"