diff --git a/usr/lib/archboot/release.sh b/usr/lib/archboot/release.sh
index 1e27b4e2f..b11ab2c1b 100644
--- a/usr/lib/archboot/release.sh
+++ b/usr/lib/archboot/release.sh
@@ -34,7 +34,7 @@ _create_iso() {
     # create container
     archboot-"${_ARCH}"-create-container.sh "${_W_DIR}" -cc --install-source="${2}" || exit 1
     _create_archboot_db "${_W_DIR}${_CACHEDIR}"
-    _KERNEL_VERSION="$(${_NSPAWN} ${_W_DIR} /bin/bash -c ". /usr/lib/archboot/common.sh; _kver $(grep 'kver' ${_W_DIR}/etc/archboot/presets/${_RUNNING_ARCH} | cut -d '=' -f2)")"
+    _KERNEL_VERSION="$(${_NSPAWN} ${_W_DIR} /bin/bash -c ". /usr/lib/archboot/common.sh; _kver $(grep 'kver' ${_W_DIR}/etc/archboot/presets/${_ARCH} | cut -d '=' -f2)")"
     _ISONAME="archboot-$(date +%Y.%m.%d-%H.%M)-${_KERNEL_VERSION}"
     echo $_KERNEL_VERSION $_ISONAME
     # riscv64 does not support kexec at the moment