diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 93879945fe7..97c08963679 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -16,7 +16,7 @@ build:
       - python -m pip install --exists-action=w --no-cache-dir -r docs/api_reference/requirements.txt
       - python docs/api_reference/create_api_rst.py
       - cat docs/api_reference/conf.py
-      - python -m sphinx -T -E -b html -d _build/doctrees -D language=en . $READTHEDOCS_OUTPUT/html -j auto
+      - python -m sphinx -T -E -b html -d _build/doctrees -c cat docs/api_reference/conf.py -D language=en . $READTHEDOCS_OUTPUT/html -j auto
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx: