diff --git a/static/js/cours.js b/static/js/cours.js
index c8ea5f3..a28b4dd 100644
--- a/static/js/cours.js
+++ b/static/js/cours.js
@@ -2,8 +2,9 @@
  * Build the filetree
  * @param {HTMLElement} parent Root element of the filetree
  * @param {{name: string, is_dir: boolean, children: any[]}} data FileNode
+ * @param {string} location Current location, used for links creation
  */
-const buildFileTree = (parent, data) => {
+const buildFileTree = (parent, data, location) => {
   const ul = document.createElement("ul");
   data.forEach((item) => {
     const li = document.createElement("li");
@@ -22,7 +23,11 @@ const buildFileTree = (parent, data) => {
     ul.appendChild(li);
 
     if (item.children && item.children.length > 0) {
-      buildFileTree(li, item.children);
+      buildFileTree(
+        li,
+        item.children,
+        item.is_dir ? location + `${item.name}/` : location
+      );
     }
   });
 
@@ -35,7 +40,8 @@ window.addEventListener("load", () => {
 
   buildFileTree(
     fileTreeElement,
-    JSON.parse(dataElement.getAttribute("data-json")).children
+    JSON.parse(dataElement.getAttribute("data-json")).children,
+    ""
   );
 
   dataElement.remove();