diff --git a/lib/smux.c b/lib/smux.c
index 2937005..38c7018 100644
--- a/lib/smux.c
+++ b/lib/smux.c
@@ -972,7 +972,7 @@
 smux_trap (const oid *name, size_t namelen,
 	   const oid *iname, size_t inamelen,
 	   const struct trap_object *trapobj, size_t trapobjlen,
-	   unsigned int tick, u_char sptrap)
+	   u_char sptrap)
 {
   unsigned int i;
   u_char buf[BUFSIZ];