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-rw-r--r--iptables/xshared.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/iptables/xshared.c b/iptables/xshared.c
index 825479c3..06db72d4 100644
--- a/iptables/xshared.c
+++ b/iptables/xshared.c
@@ -343,7 +343,7 @@ void parse_wait_interval(int argc, char *argv[], struct timeval *wait_interval)
else if (xs_has_arg(argc, argv))
arg = argv[optind++];
else
- return;
+ xtables_error(PARAMETER_PROBLEM, "wait interval value required");
ret = sscanf(arg, "%u", &usec);
if (ret == 1) {