diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
index 7f3cae00e0..87f65619eb 100644
--- a/boot/uboot/Config.in
+++ b/boot/uboot/Config.in
@@ -9,6 +9,8 @@ config BR2_TARGET_UBOOT_BOARDNAME
 	help
 	  One of U-Boot supported boards to be built.
 	  This will be suffixed with _config to meet U-Boot standard naming.
+	  See boards.cfg in U-Boot source code for the list of available
+	  configurations.
 
 choice
 	prompt "U-Boot Version"