diff --git a/docker/generate_tags.py b/docker/generate_tags.py
index a54205f1bf..b35aed91f0 100755
--- a/docker/generate_tags.py
+++ b/docker/generate_tags.py
@@ -65,7 +65,9 @@ def main():
 
     suffix = f"-{args.suffix}" if args.suffix else ""
 
-    repository = (os.environ.get("GITHUB_REPOSITORY") or "esphome/esphome").strip().lower()
+    repository = (
+        (os.environ.get("GITHUB_REPOSITORY") or "esphome/esphome").strip().lower()
+    )
     image_name = f"{repository}{suffix}"
 
     print(f"channel={channel}")