diff --git a/clientsession.go b/clientsession.go
index 86a5c68..1b36ca6 100644
--- a/clientsession.go
+++ b/clientsession.go
@@ -322,7 +322,7 @@ func (s *ClientSession) closeAndWait(wait bool) {
 		s.sessionSubscription = nil
 	}
 	go func(virtualSessions map[*VirtualSession]bool) {
-		for session, _ := range virtualSessions {
+		for session := range virtualSessions {
 			session.Close()
 		}
 	}(s.virtualSessions)
diff --git a/hub.go b/hub.go
index f79fa7f..8c6c331 100644
--- a/hub.go
+++ b/hub.go
@@ -232,7 +232,7 @@ func NewHub(config *goconf.ConfigFile, nats NatsClient, r *mux.Router, version s
 				var ip net.IP
 				var ipNet *net.IPNet
 				if strings.Contains(option, "/") {
-					ip, ipNet, err = net.ParseCIDR(option)
+					_, ipNet, err = net.ParseCIDR(option)
 					if err != nil {
 						return nil, fmt.Errorf("Could not parse CIDR %s: %s", option, err)
 					}