diff --git a/live-build/ubuntu/hooks/099-ubuntu-image-customization.chroot b/live-build/ubuntu/hooks/099-ubuntu-image-customization.chroot
index 65e06cd9..d59d6c69 100644
--- a/live-build/ubuntu/hooks/099-ubuntu-image-customization.chroot
+++ b/live-build/ubuntu/hooks/099-ubuntu-image-customization.chroot
@@ -21,7 +21,7 @@ if [ "$IMAGEFORMAT" == "none" ]; then
         echo "LABEL=writable    /     ext4    defaults,x-systemd.growfs    0 0" >>/etc/fstab
 
         # Create a 1GB swapfile
-        dd if=/dev/zero of=/swapfile bs=1M count=1024
+        dd if=/dev/zero of=/swapfile bs=1G count=1
         chmod 0600 /swapfile
         mkswap /swapfile