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-rw-r--r--extensions/libxt_esp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/extensions/libxt_esp.c b/extensions/libxt_esp.c
index 7eb030e8..6836dfc3 100644
--- a/extensions/libxt_esp.c
+++ b/extensions/libxt_esp.c
@@ -19,7 +19,7 @@ help(void)
IPTABLES_VERSION);
}
-static struct option opts[] = {
+static const struct option opts[] = {
{ "espspi", 1, 0, '1' },
{0}
};