diff --git a/.circleci/config.yml b/.circleci/config.yml
index e580f788485..1ec3346fe6a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -73,7 +73,7 @@ jobs:
         steps:
             - checkout
             - run: sudo pip install .[tf,torch,docs]
-            - run: cd docs && make html
+            - run: cd docs && make html SPHINXOPTS="-W"
             - store_artifacts:
                 path: ./docs/_build
     deploy_doc: