diff --git a/searx/settings.yml b/searx/settings.yml
index 1b18f55b3..ae9b928c2 100644
--- a/searx/settings.yml
+++ b/searx/settings.yml
@@ -766,5 +766,6 @@ doi_resolvers :
   oadoi.org : 'https://oadoi.org/'
   doi.org : 'https://doi.org/'
   doai.io  : 'http://doai.io/'
+  sci-hub.tw : 'http://sci-hub.tw/'
 
 default_doi_resolver : 'oadoi.org'