diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index bef5faa..df9234c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1250,3 +1250,6 @@
 source "lib/Kconfig.kgdb"
 
 source "lib/Kconfig.kmemcheck"
+
+config TEST_KSTRTOX
+	tristate "Test kstrto*() family of functions at runtime"