diff --git a/install.uefi b/install.uefi
index 23fb190..8cce4d1 100644
--- a/install.uefi
+++ b/install.uefi
@@ -108,7 +108,7 @@ if [[ $NOCASEMATCH_UNSET ]]; then
   shopt -s nocasematch
 fi
 
-until ${NUMBER_OF_PARTITIONS}; do
+for (( i=${NUMBER_OF_PARTITIONS}; ${i} > 0 ; ${i}-- )) ; do
   OUTPUT=$(sgdisk -i "${i}" "${DRIVE}")
   PARTITION_EXISTS=$(echo "${OUTPUT}" | grep -c "GUID")
   if [[ "${PARTITION_EXISTS}" != "0" ]]; then