diff --git a/server/server.go b/server/server.go
index d949d1e..7cb5774 100644
--- a/server/server.go
+++ b/server/server.go
@@ -74,11 +74,13 @@ func attemptTcpConnection(port int, opts *options.Options) error {
 
 	defaultTimeout := time.Second * 5
 
-	_, err := net.DialTimeout("tcp", fmt.Sprintf("0.0.0.0:%d", port), defaultTimeout)
+	conn, err := net.DialTimeout("tcp", fmt.Sprintf("0.0.0.0:%d", port), defaultTimeout)
 	if err != nil {
 		return err
 	}
 
+	defer conn.Close()
+
 	return nil
 }