diff --git a/main.sh b/main.sh
index a34ab5a..fc6391e 100644
--- a/main.sh
+++ b/main.sh
@@ -93,7 +93,7 @@ do_partition() {
 		size=512
 		parted -a optimal $TARGET_PHY_ID unit mib -s -- mkpart EFI fat32 $start $(( start + size ))
 		sleep 2
-		start=$(( start + size + 1 ))
+		start=$(( start + size ))
 		parted -a optimal $TARGET_PHY_ID unit mib -s -- mkpart root $start -1s
 		sleep 2
 		mkfs.vfat -F32 ${TARGET_PHY_ID}-part1