diff --git a/core/predictor/framework/infer.h b/core/predictor/framework/infer.h
index 53d3cde86447bb1f7a0f5eba3547b1ef2adb223d..b56ed5806b34e0d6611b081ace7187fa4a9683c2 100755
--- a/core/predictor/framework/infer.h
+++ b/core/predictor/framework/infer.h
@@ -21,7 +21,6 @@
 #include <utility>
 #include <vector>
 #include <numeric>
-#include <functional>
 #include "core/predictor/common/inner_common.h"
 #include "core/predictor/framework/bsf.h"
 #include "core/predictor/framework/factory.h"