diff --git a/doc/sklearn/index.rst b/doc/sklearn/index.rst
index 27e3dcf7..238b4412 100644
--- a/doc/sklearn/index.rst
+++ b/doc/sklearn/index.rst
@@ -15,6 +15,7 @@ khiops.sklearn
   :nosignatures:
 
   estimators
+  helpers
 
 Related Docs
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