diff --git a/config/includes.chroot/usr/lib/live/boot/0024-ciss-crypt-squash b/config/includes.chroot/usr/lib/live/boot/0024-ciss-crypt-squash
index b061bc5..5fed337 100644
--- a/config/includes.chroot/usr/lib/live/boot/0024-ciss-crypt-squash
+++ b/config/includes.chroot/usr/lib/live/boot/0024-ciss-crypt-squash
@@ -235,7 +235,12 @@ chmod 0600 /lib/cryptsetup/passfifo 2>/dev/null || true
 
     printf "\e[93m[INFO] Trying to unlock via cryptsetup ...\n\e[0m" >/dev/console 2>/dev/null || true
 
-    printf '%s\n' "${PASS}" | cryptsetup open --type luks --readonly "${LOOP}" "${CDLB_MAPPER_NAME}" --key-file - 2>/dev/console
+    KEYLEN=${#PASS}
+
+    printf '%s' "${PASS}" | cryptsetup open --tries 1 \
+      --type luks \
+      --keyfile-size="${KEYLEN}" \
+      --readonly "${LOOP}" "${CDLB_MAPPER_NAME}" --key-file - 2>/dev/console
 
     if [ -b "${CDLB_MAPPER_DEV}" ]; then