diff --git a/scripts/new-photo-post.py b/scripts/new-photo-post.py
index 5375c46..fed79c5 100755
--- a/scripts/new-photo-post.py
+++ b/scripts/new-photo-post.py
@@ -48,7 +48,7 @@ def main(argv):
     month = earliest_exif_date.month
 
     name = args.title if args.title else os.path.splitext(os.path.basename(photo))[0]
-    post_path = os.path.join(PHOTOS_CONTENT_DIR, str(year), str(month), name)
+    post_path = os.path.join(PHOTOS_CONTENT_DIR, f'{year:04}', f'{month:02}', name)
 
     try:
         hugo_command = ['hugo', 'new', '--clock', earliest_exif_date.isoformat(), post_path]