diff --git a/exercises/h5.md b/exercises/h5.md
index aaaf3f6..d1ff424 100644
--- a/exercises/h5.md
+++ b/exercises/h5.md
@@ -187,7 +187,7 @@ Executing /lib/systemd/systemd-sysv-install enable ufw
 ```
 sudo systemctl stop ufw.service && sudo systemctl disable ufw.service
 sudo apt-get purge --remove ufw
-sudo iptables --flush && sudo iptables --delete-chains
+sudo iptables --flush && sudo iptables --delete-chain
 ```
 
 **2.** Confirm deletion of ufw entries from iptables firewall rule list with