diff --git a/extensions/ebt_ip.c b/extensions/ebt_ip.c
index ddd9944..94daef3 100644
--- a/extensions/ebt_ip.c
+++ b/extensions/ebt_ip.c
@@ -217,7 +217,7 @@
 
 static void final_check(const struct ebt_u_entry *entry,
    const struct ebt_entry_match *match, const char *name,
-   unsigned int hook_mask, unsigned int time)
+   unsigned int hookmask, unsigned int time)
 {
 	if (entry->bitmask & EBT_NOPROTO || entry->bitmask & EBT_802_3 ||
 	   entry->ethproto != ETH_P_IP || entry->invflags & EBT_IPROTO)