diff --git a/pages/02.linux/default.en.md b/pages/02.linux/default.en.md
index 9b8f2f4..e0e8f85 100644
--- a/pages/02.linux/default.en.md
+++ b/pages/02.linux/default.en.md
@@ -2,3 +2,4 @@
 title: Linux
 ---
 
+[toc]
\ No newline at end of file