diff --git a/src/OptionHandlerFactory.cc b/src/OptionHandlerFactory.cc
index 6bff4caa..b3496373 100644
--- a/src/OptionHandlerFactory.cc
+++ b/src/OptionHandlerFactory.cc
@@ -440,7 +440,7 @@ std::vector<OptionHandler*> OptionHandlerFactory::createOptionHandlers()
   {
     OptionHandler* op(new NumberOptionHandler(PREF_MAX_CONNECTION_PER_SERVER,
                                               TEXT_MAX_CONNECTION_PER_SERVER,
-                                              "1", 1, 16, 'x'));
+                                              "1", 1, -1, 'x'));
     op->addTag(TAG_BASIC);
     op->addTag(TAG_FTP);
     op->addTag(TAG_HTTP);