diff --git a/logo_fetch_service.py b/logo_fetch_service.py
index d1628df..17e4332 100644
--- a/logo_fetch_service.py
+++ b/logo_fetch_service.py
@@ -384,7 +384,7 @@ class LogoFetchService:
 
         for img in soup.find_all('img'):
             attrs_text = ' '.join([
-                img.get('class', [''])[0] if isinstance(img.get('class'), list) else str(img.get('class', '')),
+                (img.get('class', ['']) or [''])[0] if isinstance(img.get('class'), list) else str(img.get('class', '')),
                 img.get('id', ''),
                 img.get('alt', ''),
                 img.get('src', '')