diff --git a/websocketpp/uri.hpp b/websocketpp/uri.hpp
index c0b8b0cbd..b5810bde1 100644
--- a/websocketpp/uri.hpp
+++ b/websocketpp/uri.hpp
@@ -262,9 +262,7 @@ class uri {
     }
 
     std::string get_port_str() const {
-        std::stringstream p;
-        p << m_port;
-        return p.str();
+        return std::to_string(m_port);
     }
 
     std::string const & get_resource() const {