diff --git a/include/inc-util/utils.hpp b/include/inc-util/utils.hpp
index 1c84ea2de4f9bef85b0bc12f1b22fea254eef5a1..ef0a998a8df0bef71f77b677697b26213d7f2f30 100644
--- a/include/inc-util/utils.hpp
+++ b/include/inc-util/utils.hpp
@@ -7,7 +7,7 @@ namespace IRDB_SDK
 	template <class T>
 	inline string to_hex_string (const T& t)
 	{
-		auto ss=stringstream();
+		stringstream ss();
 		ss << hex << t;
 		return ss.str();
 	}