diff --git a/poller_epoll.go b/poller_epoll.go
index ac606c6a..0b05d31c 100644
--- a/poller_epoll.go
+++ b/poller_epoll.go
@@ -261,7 +261,10 @@ func (p *poller) resetRead(fd int) error {
 func (p *poller) setRead(fd int, op int) error {
 	switch p.g.epollMod {
 	case EPOLLET:
-		return syscall.EpollCtl(p.epfd, op, fd, &syscall.EpollEvent{Fd: int32(fd), Events: syscall.EPOLLERR | syscall.EPOLLHUP | syscall.EPOLLRDHUP | syscall.EPOLLPRI | syscall.EPOLLIN | EPOLLET | p.g.epollOneshot})
+		if op == syscall.EPOLL_CTL_MOD {
+			return nil
+		}
+		return syscall.EpollCtl(p.epfd, op, fd, &syscall.EpollEvent{Fd: int32(fd), Events: syscall.EPOLLERR | syscall.EPOLLHUP | syscall.EPOLLRDHUP | syscall.EPOLLPRI | syscall.EPOLLIN | syscall.EPOLLOUT | EPOLLET | p.g.epollOneshot})
 	default:
 		return syscall.EpollCtl(p.epfd, op, fd, &syscall.EpollEvent{Fd: int32(fd), Events: syscall.EPOLLERR | syscall.EPOLLHUP | syscall.EPOLLRDHUP | syscall.EPOLLPRI | syscall.EPOLLIN})
 	}
@@ -274,7 +277,8 @@ func (p *poller) setRead(fd int, op int) error {
 func (p *poller) modWrite(fd int) error {
 	switch p.g.epollMod {
 	case EPOLLET:
-		return syscall.EpollCtl(p.epfd, syscall.EPOLL_CTL_MOD, fd, &syscall.EpollEvent{Fd: int32(fd), Events: syscall.EPOLLERR | syscall.EPOLLHUP | syscall.EPOLLRDHUP | syscall.EPOLLPRI | syscall.EPOLLIN | syscall.EPOLLOUT | EPOLLET | p.g.epollOneshot})
+		return nil
+		// return syscall.EpollCtl(p.epfd, syscall.EPOLL_CTL_MOD, fd, &syscall.EpollEvent{Fd: int32(fd), Events: syscall.EPOLLERR | syscall.EPOLLHUP | syscall.EPOLLRDHUP | syscall.EPOLLPRI | syscall.EPOLLIN | syscall.EPOLLOUT | EPOLLET | p.g.epollOneshot})
 	default:
 		return syscall.EpollCtl(p.epfd, syscall.EPOLL_CTL_MOD, fd, &syscall.EpollEvent{Fd: int32(fd), Events: syscall.EPOLLERR | syscall.EPOLLHUP | syscall.EPOLLRDHUP | syscall.EPOLLPRI | syscall.EPOLLIN | syscall.EPOLLOUT})
 	}