diff --git a/.readthedocs.yml b/.readthedocs.yml
index 81f2fca0ee7..012a6e6e0ae 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -37,5 +37,3 @@ search:
     chain.html: 5
     pipelines.html: 5
     packaging_guide.html: 5
-    build_systems.html: 4
-    build_systems/*: 4