diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 57bf139739..58a0c5cd92 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,5 +1,9 @@
 # Config for building https://tmt.readthedocs.io/
 version: 2
+
+sphinx:
+  configuration: docs/conf.py
+
 python:
   install:
     - method: pip