diff --git a/src/unix/process.c b/src/unix/process.c
index 9842710..15e988b 100644
--- a/src/unix/process.c
+++ b/src/unix/process.c
@@ -238,13 +238,11 @@ static int uv__process_open_stream(uv_stdio_container_t* container,
   pipefds[1] = -1;
   uv__nonblock(pipefds[0], 1);

-  if (container->data.stream->type == UV_NAMED_PIPE &&
-      ((uv_pipe_t*)container->data.stream)->ipc)
-    flags = UV_STREAM_READABLE | UV_STREAM_WRITABLE;
-  else if (writable)
-    flags = UV_STREAM_WRITABLE;
-  else
-    flags = UV_STREAM_READABLE;
+  flags = (writable ? UV_STREAM_WRITABLE : UV_STREAM_READABLE);
+  if (container->flags & UV_WRITABLE_PIPE)
+    flags |= UV_STREAM_WRITABLE;
+  if (container->flags & UV_READABLE_PIPE)
+    flags |= UV_STREAM_READABLE;

   return uv__stream_open(container->data.stream, pipefds[0], flags);
 }