diff --git a/router/internal/epoller/epoll_linux.go b/router/internal/epoller/epoll_linux.go
index ee32c6c57b..e813627797 100755
--- a/router/internal/epoller/epoll_linux.go
+++ b/router/internal/epoller/epoll_linux.go
@@ -76,7 +76,7 @@ func (e *Epoll) Add(conn net.Conn) error {
 	e.lock.Lock()
 	defer e.lock.Unlock()
 
-	err := unix.EpollCtl(e.fd, syscall.EPOLL_CTL_ADD, fd, &unix.EpollEvent{Events: unix.POLLIN | unix.POLLHUP, Fd: int32(fd)})
+	err := unix.EpollCtl(e.fd, syscall.EPOLL_CTL_ADD, fd, &unix.EpollEvent{Events: unix.EPOLLIN | unix.EPOLLHUP, Fd: int32(fd)})
 	if err != nil {
 		return err
 	}