diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index ea9cfb171b..61a7899125 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -7,6 +7,9 @@ version: 2
 sphinx:
   configuration: docs/conf.py
 
+formats:
+  - pdf
+
 build:
   os: 'ubuntu-22.04'
   apt_packages: