diff --git a/arch/um/Kconfig.char b/arch/um/Kconfig.char
index 62d87b7..e03e40c 100644
--- a/arch/um/Kconfig.char
+++ b/arch/um/Kconfig.char
@@ -190,6 +190,11 @@
 	tristate
 	default UML_SOUND
 
+#It is selected elsewhere, so kconfig would warn without this.
+config HW_RANDOM
+	tristate
+	default n
+
 config UML_RANDOM
 	tristate "Hardware random number generator"
 	help