diff --git a/cmk/gui/backup/handler.py b/cmk/gui/backup/handler.py
index c7a56bbe2bc..e370561f59e 100644
--- a/cmk/gui/backup/handler.py
+++ b/cmk/gui/backup/handler.py
@@ -1095,7 +1095,7 @@ def backups(self) -> _Backups:
         time0 = time.time()
         for ident, info in self.target.list_backups():
             backups[ident] = info
-            if time.time() - time0 > request.request_timeout - 10:
+            if time.time() - time0 > request.request_timeout - 20:
                 return _Backups(backups, timed_out=True)
         return _Backups(backups, timed_out=False)