diff --git a/include/uv-private/uv-unix.h b/include/uv-private/uv-unix.h
index ea60799e..91c0d20c 100644
--- a/include/uv-private/uv-unix.h
+++ b/include/uv-private/uv-unix.h
@@ -292,7 +292,6 @@ struct uv__io_s {
 
 #ifdef PORT_SOURCE_FILE
 # define UV_FS_EVENT_PRIVATE_FIELDS \
-  ev_io event_watcher; \
   uv_fs_event_cb cb; \
   file_obj_t fo; \
   int fd;