diff --git a/usr/lib/dracut/modules.d/40cold-boot-attack-defense/wipe-ram.sh b/usr/lib/dracut/modules.d/40cold-boot-attack-defense/wipe-ram.sh
index 5ead246..35595a3 100755
--- a/usr/lib/dracut/modules.d/40cold-boot-attack-defense/wipe-ram.sh
+++ b/usr/lib/dracut/modules.d/40cold-boot-attack-defense/wipe-ram.sh
@@ -69,6 +69,8 @@ ram_wipe() {
    if [ "$dmsetup_actual_output" = "$dmsetup_expected_output" ]; then
       info "wipe-ram.sh: Success, there are no more mounted encrypted disks, OK."
    else
+      ## dracut should unmount the root encrypted disk cryptsetup luksClose during shutdown
+      ## https://github.com/dracutdevs/dracut/issues/1888
       warn "\
 wipe-ram.sh: There are still mounted encrypted disks! RAM wipe failed!