diff --git a/main.go b/main.go
index a745739..bcd73b8 100644
--- a/main.go
+++ b/main.go
@@ -452,17 +452,19 @@ func main() {
 
 	logger.Infof("Listening on %s, ntfy-alertmanager %s", cfg.HTTPAddress, version)
 
+	mux := http.NewServeMux()
+
 	if cfg.User != "" && cfg.Password != "" {
 		logger.Info("Enabling HTTP Basic Authentication")
-		http.HandleFunc("/", bridge.basicAuthMiddleware(bridge.handleWebhooks))
-		http.HandleFunc("/silences", bridge.basicAuthMiddleware(bridge.handleSilences))
+		mux.HandleFunc("/", bridge.basicAuthMiddleware(bridge.handleWebhooks))
+		mux.HandleFunc("/silences", bridge.basicAuthMiddleware(bridge.handleSilences))
 	} else {
-		http.HandleFunc("/", bridge.handleWebhooks)
-		http.HandleFunc("/silences", bridge.handleSilences)
+		mux.HandleFunc("/", bridge.handleWebhooks)
+		mux.HandleFunc("/silences", bridge.handleSilences)
 	}
 
 	if _, ok := c.(*cache.MemoryCache); ok {
 		go bridge.runCleanup()
 	}
-	logger.Fatal(http.ListenAndServe(cfg.HTTPAddress, nil))
+	logger.Fatal(http.ListenAndServe(cfg.HTTPAddress, mux))
 }