diff --git a/include/rapidjson/filereadstream.h b/include/rapidjson/filereadstream.h
index 29ab393..4d42d38 100644
--- a/include/rapidjson/filereadstream.h
+++ b/include/rapidjson/filereadstream.h
@@ -69,11 +69,6 @@ private:
 	bool eof_;
 };
 
-template<>
-struct StreamTraits<FileReadStream> {
-	typedef FileReadStream StreamCopyType;	// Enable stream copy optimization.
-};
-
 } // namespace rapidjson
 
 #endif // RAPIDJSON_FILESTREAM_H_