diff --git a/lib/Kconfig b/lib/Kconfig
index 4a8aba2..c5da154 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -33,6 +33,9 @@
 	boolean
 	default n
 
+config STMP_DEVICE
+	bool
+
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
 	help