diff --git a/python/port/mod/os/modos.cpp b/python/port/mod/os/modos.cpp
index b404c96ac..a8333006d 100644
--- a/python/port/mod/os/modos.cpp
+++ b/python/port/mod/os/modos.cpp
@@ -117,3 +117,4 @@ mp_obj_t modos_listdir(void) {
   
   return list;
 }
+