diff --git a/docs/conf.py b/docs/conf.py
index b9013457b..f0af548f2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -41,7 +41,6 @@ extensions = [
 
 if on_rtd:
   extensions.append('sphinxcontrib.napoleon')
-  extensions.append('sphinxcontrib.websupport')
 else:
   extensions.append('sphinx.ext.napoleon')