diff --git a/core/watcher.go b/core/watcher.go
index 1feeb22..d1b07fd 100644
--- a/core/watcher.go
+++ b/core/watcher.go
@@ -70,6 +70,9 @@ func (w *Watcher) update() error {
 func (w *Watcher) doWatch(f func(TestResult)) error {
 	records := strings.Split(w.rawUrls, "\n")
 	for _, addr := range records {
+		if addr == "" {
+			continue
+		}
 		u, err := url.Parse(addr)
 		if err != nil {
 			log.Default().Printf("Invalid url: %v, skipping...", addr)