diff --git a/app/filter.py b/app/filter.py
index 731b6aa..6b4e284 100644
--- a/app/filter.py
+++ b/app/filter.py
@@ -410,7 +410,7 @@ class Filter:
             # Replace link description
             link_desc = link_desc[0]
             for site, alt in SITE_ALTS.items():
-                if site not in link_desc:
+                if site not in link_desc or not alt:
                     continue
                 new_desc = BeautifulSoup(features='html.parser').new_tag('div')
                 new_desc.string = str(link_desc).replace(site, alt)
diff --git a/app/utils/results.py b/app/utils/results.py
index a7ce6f1..55e0079 100644
--- a/app/utils/results.py
+++ b/app/utils/results.py
@@ -128,7 +128,7 @@ def get_site_alt(link: str) -> str:
     hostname = urlparse.urlparse(link).hostname
 
     for site_key in SITE_ALTS.keys():
-        if not hostname or site_key not in hostname:
+        if not hostname or site_key not in hostname or not SITE_ALTS[site_key]:
             continue
 
         link = link.replace(hostname, SITE_ALTS[site_key])