diff --git a/COS/README.md b/COS/README.md
index 6887f1c..94599cf 100644
--- a/COS/README.md
+++ b/COS/README.md
@@ -2,7 +2,7 @@
 
 ## Plan
 
-**[Day 1](/Day1) - Introduction to ORM**<br>
+**[Day 1](Day1) - Introduction to ORM**<br>
 Overview<br>
 Set up JPA<br>
 Control JPA<br>
@@ -11,7 +11,7 @@ Persistence unit<br>
 Entity classes<br>
 *Exercise 1*<br>
 
-**[Day 2](/Day2) - Relationships**<br>
+**[Day 2](https://github.com/Cphdat3sem2017f/ORM-JPA/tree/master/COS/Day2) - Relationships**<br>
 Entity manager<br>
 Annotations<br>
 Relationships<br>