diff --git a/src/globals.h b/src/globals.h
index 01d2ce6..c7a899e 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -10,17 +10,21 @@
 #include <string>
 #include <sys/types.h>
 #include <stdint.h>
+#include <hash_map>
+//#include <ext/hash_map>
 
 namespace CppJieba
 {
 
 	using namespace std;
+	using __gnu_cxx::hash_map;
+	//using namespace stdext;
 	//typedefs
 	typedef unsigned int uint;
 	typedef std::vector<std::string>::iterator VSI;
 	typedef std::vector<uint16_t> VUINT16;
 	typedef std::vector<uint16_t>::const_iterator VUINT16_CONST_ITER;
-	typedef map<uint16_t, struct TrieNode*> TrieNodeMap;
+	typedef hash_map<uint16_t, struct TrieNode*> TrieNodeMap;
 
 }