diff --git a/linux/Config.in b/linux/Config.in
index 871141fdcd..e275b8ad4f 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -375,7 +375,13 @@ if BR2_LINUX_KERNEL_DTS_SUPPORT
 # The variable below address the second case, were you only want
 # limited actions from buildroot.
 config BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT
-	bool
+	bool "DTB is built by kernel itself"
+	help
+	  Normally, the device tree(s) to be built have to be passed
+	  explicitly to the kernel build system. For some binary
+	  formats, however, the kernel build system links in the
+	  device tree directly in the kernel binary. Select this option
+	  if you have such a kernel binary format.
 
 config BR2_LINUX_KERNEL_APPENDED_DTB
 	bool