diff --git a/include/cppjieba/QuerySegment.hpp b/include/cppjieba/QuerySegment.hpp
index 7153c7a..6be886a 100644
--- a/include/cppjieba/QuerySegment.hpp
+++ b/include/cppjieba/QuerySegment.hpp
@@ -10,7 +10,6 @@
 #include "FullSegment.hpp"
 #include "MixSegment.hpp"
 #include "Unicode.hpp"
-#include "DictTrie.hpp"
 
 namespace cppjieba {
 class QuerySegment: public SegmentBase {