diff --git a/release/amd64/mkisoimages.sh b/release/amd64/mkisoimages.sh
index 699ddab2e8b6..8a0aceb0eb9f 100644
--- a/release/amd64/mkisoimages.sh
+++ b/release/amd64/mkisoimages.sh
@@ -49,7 +49,7 @@ if [ "$1" = "-b" ]; then
 	mkdir efi
 	mount -t msdosfs /dev/$device efi
 	mkdir -p efi/efi/boot
-	cp -p "$BASEBITSDIR/boot/loader.efi" efi/efi/boot/bootx64.efi
+	cp "$BASEBITSDIR/boot/loader.efi" efi/efi/boot/bootx64.efi
 	umount efi
 	rmdir efi
 	mdconfig -d -u $device