diff --git a/doc/api/index.rst b/doc/api/index.rst
index 860fe90d4..0bef91208 100644
--- a/doc/api/index.rst
+++ b/doc/api/index.rst
@@ -85,6 +85,8 @@ Magnetic fields:
 Layers and meshes:
 
 .. autosummary::
+    :toctree: generated/
+
     prism_layer
     tesseroid_layer
     DatasetAccessorPrismLayer