diff --git a/admin/autoupdater/files/usr/lib/autoupdater/upgrade.d/README b/admin/autoupdater/files/usr/lib/autoupdater/upgrade.d/README
new file mode 100644
index 0000000..2ddbb8d
--- /dev/null
+++ b/admin/autoupdater/files/usr/lib/autoupdater/upgrade.d/README
@@ -0,0 +1,3 @@
+Executable files in upgrade.d will be executed directly before the sysupgrade
+will be started. Downloading the upgrade image was successful and the
+checksum was correct.
diff --git a/admin/autoupdater/files/usr/sbin/autoupdater b/admin/autoupdater/files/usr/sbin/autoupdater
index 681d35c..be3e393 100755
--- a/admin/autoupdater/files/usr/sbin/autoupdater
+++ b/admin/autoupdater/files/usr/sbin/autoupdater
@@ -243,6 +243,7 @@ end
 local function autoupdate(mirror)
   local download_d_dir = '/usr/lib/autoupdater/download.d'
   local abort_d_dir = '/usr/lib/autoupdater/abort.d'
+  local upgrade_d_dir = '/usr/lib/autoupdater/upgrade.d'
 
 
   local manifest = read_manifest(mirror)
@@ -282,6 +283,8 @@ local function autoupdate(mirror)
     return false
   end
 
+  autoupdater_util.run_dir(upgrade_d_dir)
+
   io.stderr:write('Upgrading firmware...\n')
   local null = nixio.open('/dev/null', 'w+')
   if null then