diff --git a/openjdk-runtime/prepare b/openjdk-runtime/prepare
index f0fddba..8a348f4 100755
--- a/openjdk-runtime/prepare
+++ b/openjdk-runtime/prepare
@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /bin/bash
 # SPDX-FileCopyrightText: © 2022 Matthias Andreas Benkard <code@mail.matthias.benkard.de>
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
@@ -7,10 +7,10 @@
 
 cd "$(dirname $(readlink -e "$0"))"
 
-openjdk_package_info=$(curl "https://api.foojay.io/disco/v2.0/packages?package_type=jdk&latest=per_distro&directly_downloadable=true&release_status=ga&javafx_bundled=false&operating_system=linux&architecture=x64&archive_type=tar.gz&distro=oracle_open_jdk")
+openjdk_package_info=$(curl -L "https://api.foojay.io/disco/v2.0/packages?package_type=jdk&latest=per_distro&directly_downloadable=true&release_status=ga&javafx_bundled=false&operating_system=linux&architecture=x64&archive_type=tar.gz&distro=oracle_open_jdk")
 
 openjdk_package_uri=$(jq -r '.result[0].links.pkg_download_redirect' <<<"${openjdk_package_info}")
 openjdk_package_filename=$(jq -r '.result[0].filename' <<<"${openjdk_package_info}")
-curl --fail --create-dirs -C - -o "jdk-dist/${openjdk_package_filename}" "${openjdk_package_uri}"
+curl --fail --create-dirs -L -C - -o "jdk-dist/${openjdk_package_filename}" "${openjdk_package_uri}"
 
 ln -svf "${openjdk_package_filename}" "jdk-dist/latest.tar.gz"