diff --git a/index.md b/index.md
index 5493e028..0039287d 100644
--- a/index.md
+++ b/index.md
@@ -11,7 +11,7 @@ For the source code for the book, visit the book's GitHub repo. [book-network-pr
 |-----------|-----------------------------------------------------------------|-----------|
 | 1         | [Overview of Network Programming](./Chapter01/chapter01.md)     | ✔️        |
 | 2         | [Fundamentals of Networking Concepts](./Chapter02/chapter02.md) | ✔️        |
-| 3         | Introduction to Socket Programming                              | ✔️        |
+| 3         | [Introduction to Socket Programming](./Chapter03/chapter03.md)  | ✔️        |
 | 4         | Asynchronous Programming with Async/Await                       |           |
 | 5         | Multithreading in Network Applications                          |           |
 | 6         | Robust Error Handling and Fault Tolerance Strategies            |           |