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-rw-r--r--extensions/libip6t_hl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/libip6t_hl.c b/extensions/libip6t_hl.c
index 58b9fcfd..197ef853 100644
--- a/extensions/libip6t_hl.c
+++ b/extensions/libip6t_hl.c
@@ -120,7 +120,7 @@ static void save(const void *ip,
printf("--hl-%s %u ", op[info->mode], info->hop_limit);
}
-static struct option opts[] = {
+static const struct option opts[] = {
{ .name = "hl", .has_arg = 1, .flag = 0, .val = '2' },
{ .name = "hl-eq", .has_arg = 1, .flag = 0, .val = '2' },
{ .name = "hl-lt", .has_arg = 1, .flag = 0, .val = '3' },