diff --git a/_Sidebar.md b/_Sidebar.md
index 0f591c1..5274e4f 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -9,7 +9,7 @@
 - [Json]()
 - [Database]()
 - [UDP]()
-- [TCP]()
+- [TCP](https://gitea.eventhorizonstudio.io/SilverMoonStudio/EHS/wiki/TCP)
 - [HTTP(S)]()
 
 ### System