diff --git a/lib/Kconfig b/lib/Kconfig
index e43197e..3de9335 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -12,6 +12,14 @@
 	  the kernel tree does. Such modules that use library CRC-CCITT
 	  functions require M here.
 
+config CRC16
+	tristate "CRC16 functions"
+	help
+	  This option is provided for the case where no in-kernel-tree
+	  modules require CRC16 functions, but a module built outside
+	  the kernel tree does. Such modules that use library CRC16
+	  functions require M here.
+
 config CRC32
 	tristate "CRC32 functions"
 	default y