diff --git a/actions/backups b/actions/backups
index 2aa62fa8d..e3af4dca0 100755
--- a/actions/backups
+++ b/actions/backups
@@ -24,6 +24,7 @@ import argparse
 import glob
 import json
 import os
+import shutil
 import subprocess
 import sys
 import tarfile
@@ -140,6 +141,8 @@ def subcommand_export(arguments):
         arguments.filename
     ], check=True)
 
+    shutil.chown(arguments.filename, user='plinth', group='plinth')
+
 
 def subcommand_list_exports(arguments):
     """List exported backup archive files."""