diff --git a/doc/user_guide/api.rst b/doc/user_guide/api.rst
index eaa9cb602..40d63957d 100644
--- a/doc/user_guide/api.rst
+++ b/doc/user_guide/api.rst
@@ -689,5 +689,6 @@ Typing
    ChartType
    EncodeKwds
    Optional
+   ThemeConfig
    is_chart_type