diff --git a/source/develop/classlist.md b/source/develop/classlist.md
index cdc47d3d..fd6e50ea 100644
--- a/source/develop/classlist.md
+++ b/source/develop/classlist.md
@@ -4,7 +4,7 @@
 
 ```{toctree}
 :glob: true
-:maxdepth: 2
+:maxdepth: 1
 
 core
 io