diff --git a/index.js b/index.js
index 5e60005..facd961 100644
--- a/index.js
+++ b/index.js
@@ -1,3 +1,4 @@
+let courses = [
 {
       "title": "hybrid-linux",
       "desc": "description",
@@ -8,3 +9,4 @@
       "desc": "description",
       "dir": "hybrid-mpi"
 }
+]