diff --git a/i.sh b/i.sh
index f33ce52..fa9fe27 100644
--- a/i.sh
+++ b/i.sh
@@ -163,7 +163,9 @@ echo 'session required pam_limits.so' | tee -a /etc/pam.d/runuser-l
 ## Set ulimit for the shell user
 cd ~ && echo "ulimit -n 256000" >> .bashrc ; echo "ulimit -n 256000" >> .profile
 
-## Optimise ZFS arc size
+# add wireguard module
+
+echo "wireguard" >> /etc/modules
 
 # propagate the setting into the kernel
 update-initramfs -u -k all