diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 1ba26f8d58..cf3f80aec8 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -5,6 +5,9 @@ build:
   tools:
     python: "3.8"
 
+sphinx:
+  configuration: source/conf.py
+
 python:
   install:
   - requirements: "requirements/edx/doc.txt"