diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index e0ff9f9..663d43e 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -1,3 +1,4 @@
 # Summary
 
 - [Introduction](./introduction.md)
+- [Chapter 1](./chapter_1.md)