diff --git a/backend/main.go b/backend/main.go
index de674acd..e00e7892 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -31,7 +31,7 @@ func watchsubdir(watcher *fsnotify.Watcher, pathname string) error {
 	} else {
 		for _, d := range ds {
 			p := path.Join(pathname, d.Name())
-			if d.IsDir() {
+			if d.IsDir() && d.Name() != ".tmp" {
 				if err := watchsubdir(watcher, p); err != nil {
 					return err
 				}