diff --git a/backups/rsyncvolumes/plan.tpl.py b/backups/rsyncvolumes/plan.tpl.py
index ed7adfb..42ad7ec 100644
--- a/backups/rsyncvolumes/plan.tpl.py
+++ b/backups/rsyncvolumes/plan.tpl.py
@@ -34,7 +34,7 @@ def zipdir(path, ziph):
             if isfile(pfile):
                 ziph.write(pfile)
 
-f = ZipFile(zippath, 'w', ZIP_DEFLATED)
+f = ZipFile(zippath, 'w', ZIP_DEFLATED, allowZip64=True)
 zipdir('${SOURCE}', f)
 f.close()