diff --git a/src/unix/stream.c b/src/unix/stream.c
index f8e95ea3..c502098d 100644
--- a/src/unix/stream.c
+++ b/src/unix/stream.c
@@ -514,7 +514,7 @@ void uv__server_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   int err;
 
   stream = container_of(w, uv_stream_t, io_watcher);
-  assert(events == POLLIN);
+  assert(events & POLLIN);
   assert(stream->accepted_fd == -1);
   assert(!(stream->flags & UV_CLOSING));