diff --git a/main.go b/main.go
index bcd73b8..f3ff93c 100644
--- a/main.go
+++ b/main.go
@@ -453,6 +453,10 @@ func main() {
 	logger.Infof("Listening on %s, ntfy-alertmanager %s", cfg.HTTPAddress, version)
 
 	mux := http.NewServeMux()
+	httpServer := &http.Server{
+		Addr:    cfg.HTTPAddress,
+		Handler: mux,
+	}
 
 	if cfg.User != "" && cfg.Password != "" {
 		logger.Info("Enabling HTTP Basic Authentication")
@@ -466,5 +470,5 @@ func main() {
 	if _, ok := c.(*cache.MemoryCache); ok {
 		go bridge.runCleanup()
 	}
-	logger.Fatal(http.ListenAndServe(cfg.HTTPAddress, mux))
+	logger.Fatal(httpServer.ListenAndServe())
 }