diff --git a/dist/images/uninstall.sh b/dist/images/uninstall.sh
index ee56f3a4d53..df467a7809c 100644
--- a/dist/images/uninstall.sh
+++ b/dist/images/uninstall.sh
@@ -24,6 +24,7 @@ iptables -t filter -D FORWARD -m set --match-set ovn40services src -j ACCEPT
 iptables -t filter -D OUTPUT -p udp -m udp --dport 6081 -j MARK --set-xmark 0x0
 iptables -t filter -D OUTPUT -p tcp -m mark ! --mark 0x4000/0x4000 -m set --match-set ovn40services dst -m conntrack --ctstate NEW -j REJECT
 iptables -t mangle -D PREROUTING -m comment --comment "kube-ovn prerouting rules" -j OVN-PREROUTING
+iptables -t mangle -D POSTROUTING -m comment --comment "kube-ovn postrouting rules" -j OVN-POSTROUTING
 iptables -t mangle -D OUTPUT -m comment --comment "kube-ovn output rules" -j OVN-OUTPUT
 iptables -t mangle -F OVN-PREROUTING
 iptables -t mangle -X OVN-PREROUTING
@@ -62,6 +63,7 @@ ip6tables -t filter -D FORWARD -m set --match-set ovn60services src -j ACCEPT
 ip6tables -t filter -D OUTPUT -p udp -m udp --dport 6081 -j MARK --set-xmark 0x0
 ip6tables -t filter -D OUTPUT -p tcp -m mark ! --mark 0x4000/0x4000 -m set --match-set ovn60services dst -m conntrack --ctstate NEW -j REJECT
 ip6tables -t mangle -D PREROUTING -m comment --comment "kube-ovn prerouting rules" -j OVN-PREROUTING
+ip6tables -t mangle -D POSTROUTING -m comment --comment "kube-ovn postrouting rules" -j OVN-POSTROUTING
 ip6tables -t mangle -D OUTPUT -m comment --comment "kube-ovn output rules" -j OVN-OUTPUT
 ip6tables -t mangle -F OVN-PREROUTING
 ip6tables -t mangle -X OVN-PREROUTING