diff --git a/content/engine/install/debian.md b/content/engine/install/debian.md
index 756e856627..8a83c25731 100644
--- a/content/engine/install/debian.md
+++ b/content/engine/install/debian.md
@@ -32,7 +32,7 @@ To get started with Docker Engine on Debian, make sure you
   [Docker and ufw](../../network/packet-filtering-firewalls.md#docker-and-ufw).
 - Docker is only compatible with `iptables-nft` and `iptables-legacy`.
   Firewall rules created with `nft` are not supported on a system with Docker installed.
-  Make sure that any firewall rulesets you use are created with `iptables` or `iptables6`,
+  Make sure that any firewall rulesets you use are created with `iptables` or `ip6tables`,
   and that you add them to the `DOCKER-USER` chain,
   see [Packet filtering and firewalls](../../network/packet-filtering-firewalls.md).
 
diff --git a/content/engine/install/raspberry-pi-os.md b/content/engine/install/raspberry-pi-os.md
index 688dff72bb..9e273d5d4f 100644
--- a/content/engine/install/raspberry-pi-os.md
+++ b/content/engine/install/raspberry-pi-os.md
@@ -38,7 +38,7 @@ To get started with Docker Engine on Raspberry Pi OS, make sure you
   [Docker and ufw](../../network/packet-filtering-firewalls.md#docker-and-ufw).
 - Docker is only compatible with `iptables-nft` and `iptables-legacy`.
   Firewall rules created with `nft` are not supported on a system with Docker installed.
-  Make sure that any firewall rulesets you use are created with `iptables` or `iptables6`,
+  Make sure that any firewall rulesets you use are created with `iptables` or `ip6tables`,
   and that you add them to the `DOCKER-USER` chain,
   see [Packet filtering and firewalls](../../network/packet-filtering-firewalls.md).
 
diff --git a/content/engine/install/ubuntu.md b/content/engine/install/ubuntu.md
index e4d8ccee71..8c53144f05 100644
--- a/content/engine/install/ubuntu.md
+++ b/content/engine/install/ubuntu.md
@@ -40,7 +40,7 @@ To get started with Docker Engine on Ubuntu, make sure you
   [Docker and ufw](../../network/packet-filtering-firewalls.md#docker-and-ufw).
 - Docker is only compatible with `iptables-nft` and `iptables-legacy`.
   Firewall rules created with `nft` are not supported on a system with Docker installed.
-  Make sure that any firewall rulesets you use are created with `iptables` or `iptables6`,
+  Make sure that any firewall rulesets you use are created with `iptables` or `ip6tables`,
   and that you add them to the `DOCKER-USER` chain,
   see [Packet filtering and firewalls](../../network/packet-filtering-firewalls.md).