diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index b4ff2e5760215460fcaa79fa859c826d479d26e3..8ff3bcbce5fcb5172dd75a6469b14ba02056e283 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -35,12 +35,12 @@ menu "UML-specific options"
 
 config MODE_TT
 	bool "Tracing thread support"
-	default y
+	default n
 	help
 	This option controls whether tracing thread support is compiled
-	into UML.  Normally, this should be set to Y.  If you intend to
-	use only skas mode (and the host has the skas patch applied to it),
-	then it is OK to say N here.
+	into UML.  This option is largely obsolete, given that skas0 provides
+	skas security and performance without needing to patch the host.
+	It is safe to say 'N' here.
 
 config STATIC_LINK
 	bool "Force a static link"