diff --git a/visualdl/__init__.py b/visualdl/__init__.py
index f91720ab47353c1f2c760297d915963310326c2d..2a1e845b9d616f445141af475268eb0d56493a64 100644
--- a/visualdl/__init__.py
+++ b/visualdl/__init__.py
@@ -1,9 +1,5 @@
 import log
-import tensorboard
-import timer
-import util
 
 __all__ = [
-    'log',
-    'util'
+    'log'
 ]