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-rw-r--r--extensions/libip6t_MARK.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/libip6t_MARK.c b/extensions/libip6t_MARK.c
index 0ca40595..19bf40d2 100644
--- a/extensions/libip6t_MARK.c
+++ b/extensions/libip6t_MARK.c
@@ -20,7 +20,7 @@ help(void)
IPTABLES_VERSION);
}
-static struct option opts[] = {
+static const struct option opts[] = {
{ .name = "set-mark", .has_arg = 1, .flag = 0, .val = '1' },
{ .name = 0 }
};