diff --git a/defaults/main.yaml b/defaults/main.yaml
index 62580a7..d3d08d8 100644
--- a/defaults/main.yaml
+++ b/defaults/main.yaml
@@ -1,2 +1,3 @@
 ---
 lxd_ipv6_nat: false
+lxd_ipv4_nat: false
diff --git a/vars/main.yaml b/vars/main.yaml
index cfa1fba..3db9850 100644
--- a/vars/main.yaml
+++ b/vars/main.yaml
@@ -22,6 +22,7 @@ lxd_config:
       type: bridge
       config:
         ipv4.address: "{{lxd_ipv4_address|default('auto')}}"
+        ipv4.nat: "{{ lxd_ipv4_nat }}"
         ipv6.address: "{{lxd_ipv6_address|default('auto')}}"
         ipv6.nat: "{{ lxd_ipv6_nat }}"