diff --git a/weed/server/filer_server.go b/weed/server/filer_server.go
index 106066bb9..52dfbaf88 100644
--- a/weed/server/filer_server.go
+++ b/weed/server/filer_server.go
@@ -91,8 +91,8 @@ func NewFilerServer(defaultMux, readonlyMux *http.ServeMux, option *FilerOption)
 	util.LoadConfiguration("notification", false)
 
 	fs.option.recursiveDelete = v.GetBool("filer.options.recursive_delete")
-	v.Set("filer.options.buckets_folder", "/buckets")
-	v.Set("filer.options.queues_folder", "/queues")
+	v.SetDefault("filer.options.buckets_folder", "/buckets")
+	v.SetDefault("filer.options.queues_folder", "/queues")
 	fs.filer.DirBucketsPath = v.GetString("filer.options.buckets_folder")
 	fs.filer.DirQueuesPath = v.GetString("filer.options.queues_folder")
 	fs.filer.LoadConfiguration(v)