diff --git a/.readthedocs.yml b/.readthedocs.yml
index 3535280..8f97631 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,8 +7,9 @@ build:
 
 sphinx:
   configuration: docs/conf.py
-  formats:
-    - pdf
+
+formats:
+  - pdf
 
 python:
   install: