diff --git a/lib/Kconfig b/lib/Kconfig
index 3fb1f12012..4554bb28ea 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -80,6 +80,9 @@ config TPL_TINY_MEMSET
 config RBTREE
 	bool
 
+config BITREVERSE
+	bool
+
 source lib/dhry/Kconfig
 
 menu "Security support"