diff --git a/board/kup/common/kup.h b/board/kup/common/kup.h
index 70d7f01..b736283 100644
--- a/board/kup/common/kup.h
+++ b/board/kup/common/kup.h
@@ -41,4 +41,6 @@
 
 extern void poweron_key (void);
 
+extern void load_sernum_ethaddr(void);
+
 #endif	/* __KUP_H */