diff --git a/Server/ServerFactory.h b/Server/ServerFactory.h
index 64bb29c0c..c34350b70 100644
--- a/Server/ServerFactory.h
+++ b/Server/ServerFactory.h
@@ -36,7 +36,6 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <zlib.h>
 
 #include <boost/noncopyable.hpp>
-#include <sstream>
 
 struct ServerFactory : boost::noncopyable {
 	static Server * CreateServer(std::string& ip_address, int ip_port, int threads) {
@@ -44,12 +43,12 @@ struct ServerFactory : boost::noncopyable {
 		SimpleLogger().Write() <<
 			"http 1.1 compression handled by zlib version " << zlibVersion();
 
-        std::stringstream   port_stream;
-        port_stream << ip_port;
+        std::string port_stream;
+        intToString(ip_port, port_stream);
         return new Server(
             ip_address,
-            port_stream.str(),
-            std::min( omp_get_num_procs(), threads)
+            port_stream,
+            std::min( omp_get_num_procs(), threads )
         );
 	}
 };