diff --git a/README.md b/README.md
index e6fe787..c4ba604 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Together with Jessie and her friends, you will learn the basics of Git. Using yo
 12. [Same things from different universes](./chapter-12.md)
 13. [Fixing the Boopi that was accidentally broken](./chapter-13.md)
 14. [Ask Git to ignore files](./chapter-14.md)
-15. Make a surprise for Boopi
+15. [Make a surprise for Boopi](./chapter-15.md)
 16. [Last words](./chapter-16.md)
 
 # Download it