diff --git a/include/counter.h b/include/counter.h
index c27fb54..04c4de3 100644
--- a/include/counter.h
+++ b/include/counter.h
@@ -8,7 +8,6 @@
 #define  BAIDU_COMMON_COUNTER_H_
 
 #include "atomic.h"
-#include "timer.h"
 
 namespace baidu {
 namespace common {