diff --git a/src/cw/msgset.h b/src/cw/msgset.h
index 9af90a29..b43eab4b 100644
--- a/src/cw/msgset.h
+++ b/src/cw/msgset.h
@@ -58,7 +58,7 @@ struct cw_ElemHandler {
 
 	int (*mkkey)(const char *pkey, uint8_t*data, int len, char *dst);
 	int (*patch)(uint8_t *dst, void *data );
-
+	void * param;
 
 };