--- a/src/unix/process.c
+++ b/src/unix/process.c
@@ -241,10 +241,14 @@ static int uv__process_open_stream(uv_stdio_container_t* container,
   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;
+  else {
+      flags = (writable ? UV_STREAM_WRITABLE : UV_STREAM_READABLE);
+      if (container->flags & UV_WRITABLE_PIPE)
+        flags |= UV_STREAM_WRITABLE;
+      if (container->flags & UV_STREAM_READABLE)
+        flags |= UV_STREAM_READABLE;
+  }
+