diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index e894c89..717bf5e 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -15,6 +15,7 @@ build:
 
 sphinx:
   configuration: firmware/docs/source/conf.py
-  formats:
-    - pdf
-    - epub
+
+formats:
+  - pdf
+  - epub