diff --git a/content/k3s/latest/en/installation/network-options/_index.md b/content/k3s/latest/en/installation/network-options/_index.md
index 0889039827e..b5eb304166d 100644
--- a/content/k3s/latest/en/installation/network-options/_index.md
+++ b/content/k3s/latest/en/installation/network-options/_index.md
@@ -19,6 +19,7 @@ If you wish to use WireGuard as your flannel backend it may require additional k
  <span style="white-space: nowrap">`--flannel-backend=ipsec`</span> | Uses the IPSEC backend which encrypts network traffic. |
  <span style="white-space: nowrap">`--flannel-backend=host-gw`</span> |  Uses the host-gw backend. |
  <span style="white-space: nowrap">`--flannel-backend=wireguard`</span> | Uses the WireGuard backend which encrypts network traffic. May require additional kernel modules and configuration. |
+ <span style="white-space: nowrap">`--flannel-ipv6-masq`</span> | Apply masquerading rules to IPv6 traffic (default for IPv4). Only applies on dual-stack or IPv6-only clusters |
 
 ### Custom CNI