diff --git a/files/sidebars/mathmlref.yaml b/files/sidebars/mathmlref.yaml
index 5d06de9b5f0d1ac..4d0da126ffd8205 100644
--- a/files/sidebars/mathmlref.yaml
+++ b/files/sidebars/mathmlref.yaml
@@ -81,3 +81,4 @@ l10n:
     Global attributes: 全局属性
     Guides: 指南
     Examples: 示例
+    Beginners: 初学者教程