diff --git a/configuration/runtime.go b/configuration/runtime.go
index 57a9879..5a300f6 100644
--- a/configuration/runtime.go
+++ b/configuration/runtime.go
@@ -3,6 +3,7 @@ package configuration
 import (
 	"errors"
 	"log/slog"
+	"net"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -183,7 +184,7 @@ func (r *Runtime) Hydrate() *Runtime {
 
 func (r *Runtime) Validate() (*Runtime, error) {
 	if r.Listen != "" {
-		_, err := url.Parse(r.Listen)
+		_, _, err := net.SplitHostPort(r.Listen)
 		if err != nil {
 			return nil, constants.ErrInvalidListenAddress
 		}
diff --git a/main.go b/main.go
index 730aeb3..64c21df 100644
--- a/main.go
+++ b/main.go
@@ -30,7 +30,6 @@ type Message struct {
 var staticFiles embed.FS
 
 func main() {
-
 	logLevelFlag := flag.String("log-level", "info", "Log level")
 	versionFlag := flag.Bool("version", false, "Print version and exit")
 	flag.Parse()