diff --git a/rt-thread-version/rt-thread-standard/_sidebar.md b/rt-thread-version/rt-thread-standard/_sidebar.md
index c1b549e1c8e2be726ca929489caefd3c53037b9a..6f8962bace74f39e7c4e3f932d361ee68a5dcfa7 100644
--- a/rt-thread-version/rt-thread-standard/_sidebar.md
+++ b/rt-thread-version/rt-thread-standard/_sidebar.md
@@ -56,7 +56,7 @@
   - [workqueue](/rt-thread-version/rt-thread-standard/programming-manual/device-ipc/workqueue/workqueue.md)
 - 组件
   - C库 (LIBC)
-    - [概况](/rt-thread-version/rt-thread-standard/programming-manual/libc/libc.md)
+    - [概况](/rt-thread-version/rt-thread-standard/programming-manual/libc/introduction.md)
     - [编译器配平层](/rt-thread-version/rt-thread-standard/programming-manual/libc/compiler.md)
     - POSIX
       - [POSIX 简介](/rt-thread-version/rt-thread-standard/programming-manual/libc/posix/introduction.md)