diff --git a/internal/listener/lrfc2136/listener.go b/internal/listener/lrfc2136/listener.go
index 4f9f17c..28b2354 100644
--- a/internal/listener/lrfc2136/listener.go
+++ b/internal/listener/lrfc2136/listener.go
@@ -50,6 +50,7 @@ func NewListener(cfg *Config) (*Listener, error) {
 	}
 
 	for i, net := range cfg.nets {
+		net := net
 		app.listeners[i] = &dns.Server{
 			Addr:       cfg.addr,
 			Net:        net,