diff --git a/generate-html.py b/generate-html.py
index eb88973..8549f56 100755
--- a/generate-html.py
+++ b/generate-html.py
@@ -297,7 +297,7 @@ def get_hreflang_urls(src):
for lang in alternate_urls:
if src in alternate_urls[lang]:
url = alternate_urls[lang][src]
- hreflang.append(''.format(
+ hreflang.append(''.format(
lang=lang,
url=url
))