diff --git a/extensions/ebt_pkttype.c b/extensions/ebt_pkttype.c
index 7894d0d..3333a9b 100644
--- a/extensions/ebt_pkttype.c
+++ b/extensions/ebt_pkttype.c
@@ -57,7 +57,7 @@
 
 	switch (c) {
 	case '1':
-		ebt_check_option(flags, 1);
+		ebt_check_option2(flags, 1);
 		if (ebt_check_inverse2(optarg))
 			ptinfo->invert = 1;
 		i = strtol(optarg, &end, 16);