diff --git a/src/atextcrawler/site/parse.py b/src/atextcrawler/site/parse.py
index e29b15b..1abdeb5 100644
--- a/src/atextcrawler/site/parse.py
+++ b/src/atextcrawler/site/parse.py
@@ -48,7 +48,7 @@ async def parse_startpage(
 
     # feeds
     feeds = meta_links['feeds']
-    if 'wordpress' in meta.get('generator', '').lower():
+    if 'wordpress' in (meta.get('generator') or '').lower():
         url = durl.site() + 'feed/'
         feeds[url] = 'application/rss+xml'
     # TODO later: maybe also probe other possible feed paths 'rss', 'rss/'