diff --git a/lib/Kconfig b/lib/Kconfig
index 734ce95..0d68355 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -4,6 +4,9 @@
 
 menu "Library routines"
 
+config BITREVERSE
+	tristate
+
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
 	help