diff --git a/configs/releng/airootfs/etc/pacman.d/hooks/uncomment-mirrors.hook b/configs/releng/airootfs/etc/pacman.d/hooks/uncomment-mirrors.hook
new file mode 100644
index 0000000..ad0b5ba
--- /dev/null
+++ b/configs/releng/airootfs/etc/pacman.d/hooks/uncomment-mirrors.hook
@@ -0,0 +1,12 @@
+[Trigger]
+Operation = Install
+Operation = Upgrade
+Type = Package
+Target = pacman-mirrorlist
+
+[Action]
+Description = Uncommenting all mirrors in /etc/pacman.d/mirrorlist...
+When = PostTransaction
+Depends = pacman-mirrorlist
+Depends = sed
+Exec = /usr/bin/sed -i "s/#Server/Server/g" /etc/pacman.d/mirrorlist
diff --git a/configs/releng/airootfs/root/customize_airootfs.sh b/configs/releng/airootfs/root/customize_airootfs.sh
index dbcde48..5a39523 100755
--- a/configs/releng/airootfs/root/customize_airootfs.sh
+++ b/configs/releng/airootfs/root/customize_airootfs.sh
@@ -8,5 +8,3 @@ set -e -u
 
 sed -i 's/#\(en_US\.UTF-8\)/\1/' /etc/locale.gen
 locale-gen
-
-sed -i "s/#Server/Server/g" /etc/pacman.d/mirrorlist