diff --git a/esphome/writer.py b/esphome/writer.py
index 49b6c3b43e..6d34d8f751 100644
--- a/esphome/writer.py
+++ b/esphome/writer.py
@@ -1,5 +1,6 @@
 import importlib
 import logging
+import os
 from pathlib import Path
 import re