diff --git a/confluent_osdeploy/el8-diskless/profiles/default/scripts/imageboot.sh b/confluent_osdeploy/el8-diskless/profiles/default/scripts/imageboot.sh
index 6588b377..d49a6174 100644
--- a/confluent_osdeploy/el8-diskless/profiles/default/scripts/imageboot.sh
+++ b/confluent_osdeploy/el8-diskless/profiles/default/scripts/imageboot.sh
@@ -14,7 +14,7 @@ memtot=$(grep ^MemTotal: /proc/meminfo|awk '{print $2}')
 memtot=$((memtot/2))$(grep ^MemTotal: /proc/meminfo | awk '{print $3'})
 echo $memtot > /sys/block/zram0/disksize
 mkfs.xfs /dev/zram0 > /dev/null
-mount /dev/zram0 /mnt/overlay
+mount -o discard /dev/zram0 /mnt/overlay
 mkdir -p /mnt/overlay/upper /mnt/overlay/work
 mount -t overlay -o upperdir=/mnt/overlay/upper,workdir=/mnt/overlay/work,lowerdir=/mnt/remote disklessroot /sysroot
 mkdir -p /sysroot/etc/ssh