diff --git a/py/qstrdefs.h b/py/qstrdefs.h
index 9115c8f6f..ad57dd390 100644
--- a/py/qstrdefs.h
+++ b/py/qstrdefs.h
@@ -697,3 +697,8 @@ Q(random)
 Q(uniform)
 #endif
 #endif
+
+#if MICROPY_VFS_FAT
+Q(VfsFat)
+Q(flush)
+#endif