diff --git a/config/site_settings.yml b/config/site_settings.yml
index 2ec91a5e3ab..d64c32469c9 100644
--- a/config/site_settings.yml
+++ b/config/site_settings.yml
@@ -1535,7 +1535,7 @@ backups:
     max: 9
     shadowed_by_global: true
   include_thumbnails_in_backups:
-    default: true
+    default: false
     shadowed_by_global: true
 
 search: