diff --git a/usr/share/archboot/installer/setup b/usr/share/archboot/installer/setup
index 25eb2899e..1b84ff059 100755
--- a/usr/share/archboot/installer/setup
+++ b/usr/share/archboot/installer/setup
@@ -2398,7 +2398,7 @@ _mkfs() {
                 btrfs)    mkfs.btrfs -f ${_fsoptions} -L ${_labelname} ${_btrfsdevices} >${LOG} 2>&1; ret=$? ;;
                 nilfs2)   mkfs.nilfs2 -f ${_fsoptions} -L ${_labelname} ${_device} >${LOG} 2>&1; ret=$? ;;
                 ntfs-3g)  mkfs.ntfs ${_fsoptions} -L ${_labelname} ${_device} >${LOG} 2>&1; ret=$? ;;
-                vfat)     mkfs.vfat ${_fsoptions} -n ${_labelname} ${_device} >${LOG} 2>&1; ret=$? ;;
+                vfat)     mkfs.vfat -F32 ${_fsoptions} -n ${_labelname} ${_device} >${LOG} 2>&1; ret=$? ;;
                 # don't handle anything else here, we will error later
             esac
             if [[ ${ret} != 0 ]]; then